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Finding the Fourth Proportional to 80,446.62, 120,670.35 and 33,087.54

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Solution

The fourth proportional to 80,446.62, 120,670.35 and 33,087.54 is: 49,631.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,446.62 : 120,670.35 = 33,087.54 : x
  2. Step 2: Convert to fraction form
    80,446.62/120,670.35 = 33,087.54/x
  3. Step 3: Cross multiply
    80,446.62x = 120,670.35 × 33,087.54
  4. Step 4: Simplify right side
    80,446.62x = 3,992,685,032.44
  5. Step 5: Solve for x
    x = 3,992,685,032.44/80,446.62
  6. Step 6: Final answer
    x = 49,631.48

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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.