Home / 89,617.62-123,668.07-49,330.55

Finding the Fourth Proportional to 89,617.62, 123,668.07 and 49,330.55

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Solution

The fourth proportional to 89,617.62, 123,668.07 and 49,330.55 is: 68,073.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,617.62 : 123,668.07 = 49,330.55 : x
  2. Step 2: Convert to fraction form
    89,617.62/123,668.07 = 49,330.55/x
  3. Step 3: Cross multiply
    89,617.62x = 123,668.07 × 49,330.55
  4. Step 4: Simplify right side
    89,617.62x = 6,100,614,034.72
  5. Step 5: Solve for x
    x = 6,100,614,034.72/89,617.62
  6. Step 6: Final answer
    x = 68,073.82

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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.