Home / 87,281.92-120,449.19-49,556.17

Finding the Fourth Proportional to 87,281.92, 120,449.19 and 49,556.17

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Solution

The fourth proportional to 87,281.92, 120,449.19 and 49,556.17 is: 68,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,281.92 : 120,449.19 = 49,556.17 : x
  2. Step 2: Convert to fraction form
    87,281.92/120,449.19 = 49,556.17/x
  3. Step 3: Cross multiply
    87,281.92x = 120,449.19 × 49,556.17
  4. Step 4: Simplify right side
    87,281.92x = 5,969,000,872.40
  5. Step 5: Solve for x
    x = 5,969,000,872.40/87,281.92
  6. Step 6: Final answer
    x = 68,387.60

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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.