Home / 89,728.40-123,826.61-49,441.75

Finding the Fourth Proportional to 89,728.40, 123,826.61 and 49,441.75

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Solution

The fourth proportional to 89,728.40, 123,826.61 and 49,441.75 is: 68,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,728.40 : 123,826.61 = 49,441.75 : x
  2. Step 2: Convert to fraction form
    89,728.40/123,826.61 = 49,441.75/x
  3. Step 3: Cross multiply
    89,728.40x = 123,826.61 × 49,441.75
  4. Step 4: Simplify right side
    89,728.40x = 6,122,204,294.97
  5. Step 5: Solve for x
    x = 6,122,204,294.97/89,728.40
  6. Step 6: Final answer
    x = 68,230.40

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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.