Home / 90,229.04-124,512.90-49,942.88

Finding the Fourth Proportional to 90,229.04, 124,512.90 and 49,942.88

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Solution

The fourth proportional to 90,229.04, 124,512.90 and 49,942.88 is: 68,919.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,229.04 : 124,512.90 = 49,942.88 : x
  2. Step 2: Convert to fraction form
    90,229.04/124,512.90 = 49,942.88/x
  3. Step 3: Cross multiply
    90,229.04x = 124,512.90 × 49,942.88
  4. Step 4: Simplify right side
    90,229.04x = 6,218,532,823.15
  5. Step 5: Solve for x
    x = 6,218,532,823.15/90,229.04
  6. Step 6: Final answer
    x = 68,919.42

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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.