Home / 87,042.42-120,117.33-48,279.06

Finding the Fourth Proportional to 87,042.42, 120,117.33 and 48,279.06

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Solution

The fourth proportional to 87,042.42, 120,117.33 and 48,279.06 is: 66,624.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,042.42 : 120,117.33 = 48,279.06 : x
  2. Step 2: Convert to fraction form
    87,042.42/120,117.33 = 48,279.06/x
  3. Step 3: Cross multiply
    87,042.42x = 120,117.33 × 48,279.06
  4. Step 4: Simplify right side
    87,042.42x = 5,799,151,782.11
  5. Step 5: Solve for x
    x = 5,799,151,782.11/87,042.42
  6. Step 6: Final answer
    x = 66,624.43

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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.