Home / 93,840.09-129,501.21-51,398.65

Finding the Fourth Proportional to 93,840.09, 129,501.21 and 51,398.65

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Solution

The fourth proportional to 93,840.09, 129,501.21 and 51,398.65 is: 70,931.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,840.09 : 129,501.21 = 51,398.65 : x
  2. Step 2: Convert to fraction form
    93,840.09/129,501.21 = 51,398.65/x
  3. Step 3: Cross multiply
    93,840.09x = 129,501.21 × 51,398.65
  4. Step 4: Simplify right side
    93,840.09x = 6,656,187,367.37
  5. Step 5: Solve for x
    x = 6,656,187,367.37/93,840.09
  6. Step 6: Final answer
    x = 70,931.17

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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.