Home / 87,550.64-120,819.78-51,753.56

Finding the Fourth Proportional to 87,550.64, 120,819.78 and 51,753.56

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Solution

The fourth proportional to 87,550.64, 120,819.78 and 51,753.56 is: 71,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,550.64 : 120,819.78 = 51,753.56 : x
  2. Step 2: Convert to fraction form
    87,550.64/120,819.78 = 51,753.56/x
  3. Step 3: Cross multiply
    87,550.64x = 120,819.78 × 51,753.56
  4. Step 4: Simplify right side
    87,550.64x = 6,252,853,733.42
  5. Step 5: Solve for x
    x = 6,252,853,733.42/87,550.64
  6. Step 6: Final answer
    x = 71,419.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.