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Finding the Fourth Proportional to 80.32, 110.84 and 43.48

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Solution

The fourth proportional to 80.32, 110.84 and 43.48 is: 60.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80.32 : 110.84 = 43.48 : x
  2. Step 2: Convert to fraction form
    80.32/110.84 = 43.48/x
  3. Step 3: Cross multiply
    80.32x = 110.84 × 43.48
  4. Step 4: Simplify right side
    80.32x = 4,819.53
  5. Step 5: Solve for x
    x = 4,819.53/80.32
  6. Step 6: Final answer
    x = 60.00

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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.