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Finding the Fourth Proportional to 87,394.80, 120,589.92 and 49,144.44

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Solution

The fourth proportional to 87,394.80, 120,589.92 and 49,144.44 is: 67,810.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,394.80 : 120,589.92 = 49,144.44 : x
  2. Step 2: Convert to fraction form
    87,394.80/120,589.92 = 49,144.44/x
  3. Step 3: Cross multiply
    87,394.80x = 120,589.92 × 49,144.44
  4. Step 4: Simplify right side
    87,394.80x = 5,926,324,088.04
  5. Step 5: Solve for x
    x = 5,926,324,088.04/87,394.80
  6. Step 6: Final answer
    x = 67,810.95

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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.