Home / 87,651.66-131,498.07-28,487.34

Finding the Fourth Proportional to 87,651.66, 131,498.07 and 28,487.34

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Solution

The fourth proportional to 87,651.66, 131,498.07 and 28,487.34 is: 42,737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,651.66 : 131,498.07 = 28,487.34 : x
  2. Step 2: Convert to fraction form
    87,651.66/131,498.07 = 28,487.34/x
  3. Step 3: Cross multiply
    87,651.66x = 131,498.07 × 28,487.34
  4. Step 4: Simplify right side
    87,651.66x = 3,746,030,229.43
  5. Step 5: Solve for x
    x = 3,746,030,229.43/87,651.66
  6. Step 6: Final answer
    x = 42,737.70

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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.