Home / 87,382.79-120,587.10-49,142.33

Finding the Fourth Proportional to 87,382.79, 120,587.10 and 49,142.33

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Solution

The fourth proportional to 87,382.79, 120,587.10 and 49,142.33 is: 67,815.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,382.79 : 120,587.10 = 49,142.33 : x
  2. Step 2: Convert to fraction form
    87,382.79/120,587.10 = 49,142.33/x
  3. Step 3: Cross multiply
    87,382.79x = 120,587.10 × 49,142.33
  4. Step 4: Simplify right side
    87,382.79x = 5,925,930,726.93
  5. Step 5: Solve for x
    x = 5,925,930,726.93/87,382.79
  6. Step 6: Final answer
    x = 67,815.76

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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.