Home / 93,422.40-128,926.78-53,143.26

Finding the Fourth Proportional to 93,422.40, 128,926.78 and 53,143.26

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Solution

The fourth proportional to 93,422.40, 128,926.78 and 53,143.26 is: 73,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,422.40 : 128,926.78 = 53,143.26 : x
  2. Step 2: Convert to fraction form
    93,422.40/128,926.78 = 53,143.26/x
  3. Step 3: Cross multiply
    93,422.40x = 128,926.78 × 53,143.26
  4. Step 4: Simplify right side
    93,422.40x = 6,851,589,390.50
  5. Step 5: Solve for x
    x = 6,851,589,390.50/93,422.40
  6. Step 6: Final answer
    x = 73,339.90

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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.