Home / 89,727.40-123,825.23-49,440.75

Finding the Fourth Proportional to 89,727.40, 123,825.23 and 49,440.75

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Solution

The fourth proportional to 89,727.40, 123,825.23 and 49,440.75 is: 68,229.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,727.40 : 123,825.23 = 49,440.75 : x
  2. Step 2: Convert to fraction form
    89,727.40/123,825.23 = 49,440.75/x
  3. Step 3: Cross multiply
    89,727.40x = 123,825.23 × 49,440.75
  4. Step 4: Simplify right side
    89,727.40x = 6,122,012,240.12
  5. Step 5: Solve for x
    x = 6,122,012,240.12/89,727.40
  6. Step 6: Final answer
    x = 68,229.02

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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.