Home / 87,972.18-131,859.14-43,630.71

Finding the Fourth Proportional to 87,972.18, 131,859.14 and 43,630.71

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Solution

The fourth proportional to 87,972.18, 131,859.14 and 43,630.71 is: 65,396.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,972.18 : 131,859.14 = 43,630.71 : x
  2. Step 2: Convert to fraction form
    87,972.18/131,859.14 = 43,630.71/x
  3. Step 3: Cross multiply
    87,972.18x = 131,859.14 × 43,630.71
  4. Step 4: Simplify right side
    87,972.18x = 5,753,107,680.04
  5. Step 5: Solve for x
    x = 5,753,107,680.04/87,972.18
  6. Step 6: Final answer
    x = 65,396.90

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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.