Home / 87,342.10-120,531.49-49,616.35

Finding the Fourth Proportional to 87,342.10, 120,531.49 and 49,616.35

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Solution

The fourth proportional to 87,342.10, 120,531.49 and 49,616.35 is: 68,470.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,342.10 : 120,531.49 = 49,616.35 : x
  2. Step 2: Convert to fraction form
    87,342.10/120,531.49 = 49,616.35/x
  3. Step 3: Cross multiply
    87,342.10x = 120,531.49 × 49,616.35
  4. Step 4: Simplify right side
    87,342.10x = 5,980,332,447.58
  5. Step 5: Solve for x
    x = 5,980,332,447.58/87,342.10
  6. Step 6: Final answer
    x = 68,470.22

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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.