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Finding the Fourth Proportional to 80,492.74, 120,739.11 and 27,902.23

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Solution

The fourth proportional to 80,492.74, 120,739.11 and 27,902.23 is: 41,853.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,492.74 : 120,739.11 = 27,902.23 : x
  2. Step 2: Convert to fraction form
    80,492.74/120,739.11 = 27,902.23/x
  3. Step 3: Cross multiply
    80,492.74x = 120,739.11 × 27,902.23
  4. Step 4: Simplify right side
    80,492.74x = 3,368,890,010.73
  5. Step 5: Solve for x
    x = 3,368,890,010.73/80,492.74
  6. Step 6: Final answer
    x = 41,853.34

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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.