Home / 90,226.22-124,512.46-49,942.78

Finding the Fourth Proportional to 90,226.22, 124,512.46 and 49,942.78

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Solution

The fourth proportional to 90,226.22, 124,512.46 and 49,942.78 is: 68,921.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,226.22 : 124,512.46 = 49,942.78 : x
  2. Step 2: Convert to fraction form
    90,226.22/124,512.46 = 49,942.78/x
  3. Step 3: Cross multiply
    90,226.22x = 124,512.46 × 49,942.78
  4. Step 4: Simplify right side
    90,226.22x = 6,218,498,397.04
  5. Step 5: Solve for x
    x = 6,218,498,397.04/90,226.22
  6. Step 6: Final answer
    x = 68,921.19

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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.