Home / 87,601.92-131,414.76-28,418.28

Finding the Fourth Proportional to 87,601.92, 131,414.76 and 28,418.28

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Solution

The fourth proportional to 87,601.92, 131,414.76 and 28,418.28 is: 42,631.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,601.92 : 131,414.76 = 28,418.28 : x
  2. Step 2: Convert to fraction form
    87,601.92/131,414.76 = 28,418.28/x
  3. Step 3: Cross multiply
    87,601.92x = 131,414.76 × 28,418.28
  4. Step 4: Simplify right side
    87,601.92x = 3,734,581,445.81
  5. Step 5: Solve for x
    x = 3,734,581,445.81/87,601.92
  6. Step 6: Final answer
    x = 42,631.27

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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.