Home / 89,505.74-123,520.95-49,221.20

Finding the Fourth Proportional to 89,505.74, 123,520.95 and 49,221.20

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Solution

The fourth proportional to 89,505.74, 123,520.95 and 49,221.20 is: 67,926.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,505.74 : 123,520.95 = 49,221.20 : x
  2. Step 2: Convert to fraction form
    89,505.74/123,520.95 = 49,221.20/x
  3. Step 3: Cross multiply
    89,505.74x = 123,520.95 × 49,221.20
  4. Step 4: Simplify right side
    89,505.74x = 6,079,848,766.54
  5. Step 5: Solve for x
    x = 6,079,848,766.54/89,505.74
  6. Step 6: Final answer
    x = 67,926.92

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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.