Home / 89,671.20-123,745.68-49,382.88

Finding the Fourth Proportional to 89,671.20, 123,745.68 and 49,382.88

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Solution

The fourth proportional to 89,671.20, 123,745.68 and 49,382.88 is: 68,148.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,671.20 : 123,745.68 = 49,382.88 : x
  2. Step 2: Convert to fraction form
    89,671.20/123,745.68 = 49,382.88/x
  3. Step 3: Cross multiply
    89,671.20x = 123,745.68 × 49,382.88
  4. Step 4: Simplify right side
    89,671.20x = 6,110,918,065.96
  5. Step 5: Solve for x
    x = 6,110,918,065.96/89,671.20
  6. Step 6: Final answer
    x = 68,148.06

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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.