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Finding the Fourth Proportional to 83,812.88, 125,692.46 and 27,640.38

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Solution

The fourth proportional to 83,812.88, 125,692.46 and 27,640.38 is: 41,451.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,812.88 : 125,692.46 = 27,640.38 : x
  2. Step 2: Convert to fraction form
    83,812.88/125,692.46 = 27,640.38/x
  3. Step 3: Cross multiply
    83,812.88x = 125,692.46 × 27,640.38
  4. Step 4: Simplify right side
    83,812.88x = 3,474,187,357.53
  5. Step 5: Solve for x
    x = 3,474,187,357.53/83,812.88
  6. Step 6: Final answer
    x = 41,451.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.