Home / 87,909.20-131,859.56-28,737.04

Finding the Fourth Proportional to 87,909.20, 131,859.56 and 28,737.04

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Solution

The fourth proportional to 87,909.20, 131,859.56 and 28,737.04 is: 43,104.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,909.20 : 131,859.56 = 28,737.04 : x
  2. Step 2: Convert to fraction form
    87,909.20/131,859.56 = 28,737.04/x
  3. Step 3: Cross multiply
    87,909.20x = 131,859.56 × 28,737.04
  4. Step 4: Simplify right side
    87,909.20x = 3,789,253,450.10
  5. Step 5: Solve for x
    x = 3,789,253,450.10/87,909.20
  6. Step 6: Final answer
    x = 43,104.17

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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.