Home / 89,505.88-123,520.82-49,217.56

Finding the Fourth Proportional to 89,505.88, 123,520.82 and 49,217.56

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Solution

The fourth proportional to 89,505.88, 123,520.82 and 49,217.56 is: 67,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,505.88 : 123,520.82 = 49,217.56 : x
  2. Step 2: Convert to fraction form
    89,505.88/123,520.82 = 49,217.56/x
  3. Step 3: Cross multiply
    89,505.88x = 123,520.82 × 49,217.56
  4. Step 4: Simplify right side
    89,505.88x = 6,079,393,369.60
  5. Step 5: Solve for x
    x = 6,079,393,369.60/89,505.88
  6. Step 6: Final answer
    x = 67,921.72

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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.