Home / 87,151.72-120,269.37-49,425.97

Finding the Fourth Proportional to 87,151.72, 120,269.37 and 49,425.97

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Solution

The fourth proportional to 87,151.72, 120,269.37 and 49,425.97 is: 68,207.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,151.72 : 120,269.37 = 49,425.97 : x
  2. Step 2: Convert to fraction form
    87,151.72/120,269.37 = 49,425.97/x
  3. Step 3: Cross multiply
    87,151.72x = 120,269.37 × 49,425.97
  4. Step 4: Simplify right side
    87,151.72x = 5,944,430,273.54
  5. Step 5: Solve for x
    x = 5,944,430,273.54/87,151.72
  6. Step 6: Final answer
    x = 68,207.84

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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.