Home / 87,627.15-131,428.36-28,463.53

Finding the Fourth Proportional to 87,627.15, 131,428.36 and 28,463.53

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Solution

The fourth proportional to 87,627.15, 131,428.36 and 28,463.53 is: 42,691.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,627.15 : 131,428.36 = 28,463.53 : x
  2. Step 2: Convert to fraction form
    87,627.15/131,428.36 = 28,463.53/x
  3. Step 3: Cross multiply
    87,627.15x = 131,428.36 × 28,463.53
  4. Step 4: Simplify right side
    87,627.15x = 3,740,915,067.71
  5. Step 5: Solve for x
    x = 3,740,915,067.71/87,627.15
  6. Step 6: Final answer
    x = 42,691.28

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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.