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Finding the Fourth Proportional to 87,773.52, 131,734 and 37,891.30

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Solution

The fourth proportional to 87,773.52, 131,734 and 37,891.30 is: 56,868.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,773.52 : 131,734 = 37,891.30 : x
  2. Step 2: Convert to fraction form
    87,773.52/131,734 = 37,891.30/x
  3. Step 3: Cross multiply
    87,773.52x = 131,734 × 37,891.30
  4. Step 4: Simplify right side
    87,773.52x = 4,991,572,514.20
  5. Step 5: Solve for x
    x = 4,991,572,514.20/87,773.52
  6. Step 6: Final answer
    x = 56,868.77

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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.