Home / 87,279.97-120,446.46-49,554.22

Finding the Fourth Proportional to 87,279.97, 120,446.46 and 49,554.22

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Solution

The fourth proportional to 87,279.97, 120,446.46 and 49,554.22 is: 68,384.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,279.97 : 120,446.46 = 49,554.22 : x
  2. Step 2: Convert to fraction form
    87,279.97/120,446.46 = 49,554.22/x
  3. Step 3: Cross multiply
    87,279.97x = 120,446.46 × 49,554.22
  4. Step 4: Simplify right side
    87,279.97x = 5,968,630,301.78
  5. Step 5: Solve for x
    x = 5,968,630,301.78/87,279.97
  6. Step 6: Final answer
    x = 68,384.88

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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.