Home / 90,229.30-124,512.50-49,940.66

Finding the Fourth Proportional to 90,229.30, 124,512.50 and 49,940.66

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Solution

The fourth proportional to 90,229.30, 124,512.50 and 49,940.66 is: 68,915.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,229.30 : 124,512.50 = 49,940.66 : x
  2. Step 2: Convert to fraction form
    90,229.30/124,512.50 = 49,940.66/x
  3. Step 3: Cross multiply
    90,229.30x = 124,512.50 × 49,940.66
  4. Step 4: Simplify right side
    90,229.30x = 6,218,236,428.25
  5. Step 5: Solve for x
    x = 6,218,236,428.25/90,229.30
  6. Step 6: Final answer
    x = 68,915.93

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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.