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Finding the Fourth Proportional to 89,751.98, 123,857.10 and 49,465.76

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Solution

The fourth proportional to 89,751.98, 123,857.10 and 49,465.76 is: 68,262.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,751.98 : 123,857.10 = 49,465.76 : x
  2. Step 2: Convert to fraction form
    89,751.98/123,857.10 = 49,465.76/x
  3. Step 3: Cross multiply
    89,751.98x = 123,857.10 × 49,465.76
  4. Step 4: Simplify right side
    89,751.98x = 6,126,684,963.61
  5. Step 5: Solve for x
    x = 6,126,684,963.61/89,751.98
  6. Step 6: Final answer
    x = 68,262.39

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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.