Home / 89,618.16-123,672.04-49,331.04

Finding the Fourth Proportional to 89,618.16, 123,672.04 and 49,331.04

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Solution

The fourth proportional to 89,618.16, 123,672.04 and 49,331.04 is: 68,076.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,618.16 : 123,672.04 = 49,331.04 : x
  2. Step 2: Convert to fraction form
    89,618.16/123,672.04 = 49,331.04/x
  3. Step 3: Cross multiply
    89,618.16x = 123,672.04 × 49,331.04
  4. Step 4: Simplify right side
    89,618.16x = 6,100,870,352.12
  5. Step 5: Solve for x
    x = 6,100,870,352.12/89,618.16
  6. Step 6: Final answer
    x = 68,076.27

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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.