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Finding the Fourth Proportional to 80,992.96, 111,769.97 and 45,182.95

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Solution

The fourth proportional to 80,992.96, 111,769.97 and 45,182.95 is: 62,352.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,992.96 : 111,769.97 = 45,182.95 : x
  2. Step 2: Convert to fraction form
    80,992.96/111,769.97 = 45,182.95/x
  3. Step 3: Cross multiply
    80,992.96x = 111,769.97 × 45,182.95
  4. Step 4: Simplify right side
    80,992.96x = 5,050,096,460.67
  5. Step 5: Solve for x
    x = 5,050,096,460.67/80,992.96
  6. Step 6: Final answer
    x = 62,352.29

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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.