Home / 89,660.56-123,734.70-49,377.16

Finding the Fourth Proportional to 89,660.56, 123,734.70 and 49,377.16

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Solution

The fourth proportional to 89,660.56, 123,734.70 and 49,377.16 is: 68,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,660.56 : 123,734.70 = 49,377.16 : x
  2. Step 2: Convert to fraction form
    89,660.56/123,734.70 = 49,377.16/x
  3. Step 3: Cross multiply
    89,660.56x = 123,734.70 × 49,377.16
  4. Step 4: Simplify right side
    89,660.56x = 6,109,668,079.45
  5. Step 5: Solve for x
    x = 6,109,668,079.45/89,660.56
  6. Step 6: Final answer
    x = 68,142.20

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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.