Home / 87,432.38-131,092.40-57,411.17

Finding the Fourth Proportional to 87,432.38, 131,092.40 and 57,411.17

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Solution

The fourth proportional to 87,432.38, 131,092.40 and 57,411.17 is: 86,079.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,432.38 : 131,092.40 = 57,411.17 : x
  2. Step 2: Convert to fraction form
    87,432.38/131,092.40 = 57,411.17/x
  3. Step 3: Cross multiply
    87,432.38x = 131,092.40 × 57,411.17
  4. Step 4: Simplify right side
    87,432.38x = 7,526,167,119.59
  5. Step 5: Solve for x
    x = 7,526,167,119.59/87,432.38
  6. Step 6: Final answer
    x = 86,079.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.