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Finding the Fourth Proportional to 87,753.52, 131,630.12 and 28,589.12

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Solution

The fourth proportional to 87,753.52, 131,630.12 and 28,589.12 is: 42,883.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,753.52 : 131,630.12 = 28,589.12 : x
  2. Step 2: Convert to fraction form
    87,753.52/131,630.12 = 28,589.12/x
  3. Step 3: Cross multiply
    87,753.52x = 131,630.12 × 28,589.12
  4. Step 4: Simplify right side
    87,753.52x = 3,763,189,296.29
  5. Step 5: Solve for x
    x = 3,763,189,296.29/87,753.52
  6. Step 6: Final answer
    x = 42,883.63

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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.