Home / 89,517.33-123,549.71-51,278.85

Finding the Fourth Proportional to 89,517.33, 123,549.71 and 51,278.85

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Solution

The fourth proportional to 89,517.33, 123,549.71 and 51,278.85 is: 70,773.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,517.33 : 123,549.71 = 51,278.85 : x
  2. Step 2: Convert to fraction form
    89,517.33/123,549.71 = 51,278.85/x
  3. Step 3: Cross multiply
    89,517.33x = 123,549.71 × 51,278.85
  4. Step 4: Simplify right side
    89,517.33x = 6,335,486,790.24
  5. Step 5: Solve for x
    x = 6,335,486,790.24/89,517.33
  6. Step 6: Final answer
    x = 70,773.86

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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.