Home / 93,220.17-128,710.13-57,421.41

Finding the Fourth Proportional to 93,220.17, 128,710.13 and 57,421.41

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Solution

The fourth proportional to 93,220.17, 128,710.13 and 57,421.41 is: 79,282.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,220.17 : 128,710.13 = 57,421.41 : x
  2. Step 2: Convert to fraction form
    93,220.17/128,710.13 = 57,421.41/x
  3. Step 3: Cross multiply
    93,220.17x = 128,710.13 × 57,421.41
  4. Step 4: Simplify right side
    93,220.17x = 7,390,716,858.78
  5. Step 5: Solve for x
    x = 7,390,716,858.78/93,220.17
  6. Step 6: Final answer
    x = 79,282.38

Related Problems

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Half scale
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Double scale
Find fourth proportional to 93,221.17, 128,711.51 and 57,422.41
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.