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Finding the Fourth Proportional to 89,225.80, 123,131.78 and 48,939.89

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Solution

The fourth proportional to 89,225.80, 123,131.78 and 48,939.89 is: 67,537.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,225.80 : 123,131.78 = 48,939.89 : x
  2. Step 2: Convert to fraction form
    89,225.80/123,131.78 = 48,939.89/x
  3. Step 3: Cross multiply
    89,225.80x = 123,131.78 × 48,939.89
  4. Step 4: Simplify right side
    89,225.80x = 6,026,055,768.70
  5. Step 5: Solve for x
    x = 6,026,055,768.70/89,225.80
  6. Step 6: Final answer
    x = 67,537.14

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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.