Home / 87,338.10-131,007.15-28,175.70

Finding the Fourth Proportional to 87,338.10, 131,007.15 and 28,175.70

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Solution

The fourth proportional to 87,338.10, 131,007.15 and 28,175.70 is: 42,263.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,338.10 : 131,007.15 = 28,175.70 : x
  2. Step 2: Convert to fraction form
    87,338.10/131,007.15 = 28,175.70/x
  3. Step 3: Cross multiply
    87,338.10x = 131,007.15 × 28,175.70
  4. Step 4: Simplify right side
    87,338.10x = 3,691,218,156.26
  5. Step 5: Solve for x
    x = 3,691,218,156.26/87,338.10
  6. Step 6: Final answer
    x = 42,263.55

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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.