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Finding the Fourth Proportional to 87,542.88, 131,312.88 and 25,213.20

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Solution

The fourth proportional to 87,542.88, 131,312.88 and 25,213.20 is: 37,819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,542.88 : 131,312.88 = 25,213.20 : x
  2. Step 2: Convert to fraction form
    87,542.88/131,312.88 = 25,213.20/x
  3. Step 3: Cross multiply
    87,542.88x = 131,312.88 × 25,213.20
  4. Step 4: Simplify right side
    87,542.88x = 3,310,817,906.02
  5. Step 5: Solve for x
    x = 3,310,817,906.02/87,542.88
  6. Step 6: Final answer
    x = 37,819.39

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1.5x scale

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.