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Finding the Fourth Proportional to 89,773.45, 123,892.89 and 49,487.11

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Solution

The fourth proportional to 89,773.45, 123,892.89 and 49,487.11 is: 68,295.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,773.45 : 123,892.89 = 49,487.11 : x
  2. Step 2: Convert to fraction form
    89,773.45/123,892.89 = 49,487.11/x
  3. Step 3: Cross multiply
    89,773.45x = 123,892.89 × 49,487.11
  4. Step 4: Simplify right side
    89,773.45x = 6,131,101,075.65
  5. Step 5: Solve for x
    x = 6,131,101,075.65/89,773.45
  6. Step 6: Final answer
    x = 68,295.26

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1.5x scale

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.