Home / 89,939.30-124,115.49-49,652.21

Finding the Fourth Proportional to 89,939.30, 124,115.49 and 49,652.21

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Solution

The fourth proportional to 89,939.30, 124,115.49 and 49,652.21 is: 68,519.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,939.30 : 124,115.49 = 49,652.21 : x
  2. Step 2: Convert to fraction form
    89,939.30/124,115.49 = 49,652.21/x
  3. Step 3: Cross multiply
    89,939.30x = 124,115.49 × 49,652.21
  4. Step 4: Simplify right side
    89,939.30x = 6,162,607,753.16
  5. Step 5: Solve for x
    x = 6,162,607,753.16/89,939.30
  6. Step 6: Final answer
    x = 68,519.63

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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.