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Finding the Fourth Proportional to 87,500.76, 131,253 and 31,344.52

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Solution

The fourth proportional to 87,500.76, 131,253 and 31,344.52 is: 47,017.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,500.76 : 131,253 = 31,344.52 : x
  2. Step 2: Convert to fraction form
    87,500.76/131,253 = 31,344.52/x
  3. Step 3: Cross multiply
    87,500.76x = 131,253 × 31,344.52
  4. Step 4: Simplify right side
    87,500.76x = 4,114,062,283.56
  5. Step 5: Solve for x
    x = 4,114,062,283.56/87,500.76
  6. Step 6: Final answer
    x = 47,017.45

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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.