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Finding the Fourth Proportional to 80,481.44, 120,681.66 and 27,876.80

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Solution

The fourth proportional to 80,481.44, 120,681.66 and 27,876.80 is: 41,801.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,481.44 : 120,681.66 = 27,876.80 : x
  2. Step 2: Convert to fraction form
    80,481.44/120,681.66 = 27,876.80/x
  3. Step 3: Cross multiply
    80,481.44x = 120,681.66 × 27,876.80
  4. Step 4: Simplify right side
    80,481.44x = 3,364,218,499.49
  5. Step 5: Solve for x
    x = 3,364,218,499.49/80,481.44
  6. Step 6: Final answer
    x = 41,801.17

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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.