Home / 87,591.96-120,876.91-47,305.73

Finding the Fourth Proportional to 87,591.96, 120,876.91 and 47,305.73

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Solution

The fourth proportional to 87,591.96, 120,876.91 and 47,305.73 is: 65,281.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,591.96 : 120,876.91 = 47,305.73 : x
  2. Step 2: Convert to fraction form
    87,591.96/120,876.91 = 47,305.73/x
  3. Step 3: Cross multiply
    87,591.96x = 120,876.91 × 47,305.73
  4. Step 4: Simplify right side
    87,591.96x = 5,718,170,651.62
  5. Step 5: Solve for x
    x = 5,718,170,651.62/87,591.96
  6. Step 6: Final answer
    x = 65,281.91

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1.5x scale

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.