Home / 87,616.38-131,348.76-74,375.88

Finding the Fourth Proportional to 87,616.38, 131,348.76 and 74,375.88

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Solution

The fourth proportional to 87,616.38, 131,348.76 and 74,375.88 is: 111,499.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,616.38 : 131,348.76 = 74,375.88 : x
  2. Step 2: Convert to fraction form
    87,616.38/131,348.76 = 74,375.88/x
  3. Step 3: Cross multiply
    87,616.38x = 131,348.76 × 74,375.88
  4. Step 4: Simplify right side
    87,616.38x = 9,769,179,611.91
  5. Step 5: Solve for x
    x = 9,769,179,611.91/87,616.38
  6. Step 6: Final answer
    x = 111,499.47

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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.