Home / 90,279.56-124,546.46-54,449.66

Finding the Fourth Proportional to 90,279.56, 124,546.46 and 54,449.66

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Solution

The fourth proportional to 90,279.56, 124,546.46 and 54,449.66 is: 75,116.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,279.56 : 124,546.46 = 54,449.66 : x
  2. Step 2: Convert to fraction form
    90,279.56/124,546.46 = 54,449.66/x
  3. Step 3: Cross multiply
    90,279.56x = 124,546.46 × 54,449.66
  4. Step 4: Simplify right side
    90,279.56x = 6,781,512,401.20
  5. Step 5: Solve for x
    x = 6,781,512,401.20/90,279.56
  6. Step 6: Final answer
    x = 75,116.81

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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.