Home / 89,768.57-123,874.98-49,480.11

Finding the Fourth Proportional to 89,768.57, 123,874.98 and 49,480.11

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Solution

The fourth proportional to 89,768.57, 123,874.98 and 49,480.11 is: 68,279.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,768.57 : 123,874.98 = 49,480.11 : x
  2. Step 2: Convert to fraction form
    89,768.57/123,874.98 = 49,480.11/x
  3. Step 3: Cross multiply
    89,768.57x = 123,874.98 × 49,480.11
  4. Step 4: Simplify right side
    89,768.57x = 6,129,347,636.65
  5. Step 5: Solve for x
    x = 6,129,347,636.65/89,768.57
  6. Step 6: Final answer
    x = 68,279.44

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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.