Home / 89,616.72-123,671.52-49,334.52

Finding the Fourth Proportional to 89,616.72, 123,671.52 and 49,334.52

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Solution

The fourth proportional to 89,616.72, 123,671.52 and 49,334.52 is: 68,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,616.72 : 123,671.52 = 49,334.52 : x
  2. Step 2: Convert to fraction form
    89,616.72/123,671.52 = 49,334.52/x
  3. Step 3: Cross multiply
    89,616.72x = 123,671.52 × 49,334.52
  4. Step 4: Simplify right side
    89,616.72x = 6,101,275,076.87
  5. Step 5: Solve for x
    x = 6,101,275,076.87/89,616.72
  6. Step 6: Final answer
    x = 68,081.88

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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.