Home / 87,449.52-120,677.76-49,211.28

Finding the Fourth Proportional to 87,449.52, 120,677.76 and 49,211.28

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Solution

The fourth proportional to 87,449.52, 120,677.76 and 49,211.28 is: 67,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,449.52 : 120,677.76 = 49,211.28 : x
  2. Step 2: Convert to fraction form
    87,449.52/120,677.76 = 49,211.28/x
  3. Step 3: Cross multiply
    87,449.52x = 120,677.76 × 49,211.28
  4. Step 4: Simplify right side
    87,449.52x = 5,938,707,037.13
  5. Step 5: Solve for x
    x = 5,938,707,037.13/87,449.52
  6. Step 6: Final answer
    x = 67,910.12

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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.