Home / 87,149.72-120,266.61-49,423.97

Finding the Fourth Proportional to 87,149.72, 120,266.61 and 49,423.97

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Solution

The fourth proportional to 87,149.72, 120,266.61 and 49,423.97 is: 68,205.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,149.72 : 120,266.61 = 49,423.97 : x
  2. Step 2: Convert to fraction form
    87,149.72/120,266.61 = 49,423.97/x
  3. Step 3: Cross multiply
    87,149.72x = 120,266.61 × 49,423.97
  4. Step 4: Simplify right side
    87,149.72x = 5,944,053,359.65
  5. Step 5: Solve for x
    x = 5,944,053,359.65/87,149.72
  6. Step 6: Final answer
    x = 68,205.08

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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.