Home / 87,151.22-120,268.68-49,425.47

Finding the Fourth Proportional to 87,151.22, 120,268.68 and 49,425.47

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Solution

The fourth proportional to 87,151.22, 120,268.68 and 49,425.47 is: 68,207.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,151.22 : 120,268.68 = 49,425.47 : x
  2. Step 2: Convert to fraction form
    87,151.22/120,268.68 = 49,425.47/x
  3. Step 3: Cross multiply
    87,151.22x = 120,268.68 × 49,425.47
  4. Step 4: Simplify right side
    87,151.22x = 5,944,335,433.94
  5. Step 5: Solve for x
    x = 5,944,335,433.94/87,151.22
  6. Step 6: Final answer
    x = 68,207.14

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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.