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Finding the Fourth Proportional to 54.35, 81.17 and 44.11

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Solution

The fourth proportional to 54.35, 81.17 and 44.11 is: 65.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54.35 : 81.17 = 44.11 : x
  2. Step 2: Convert to fraction form
    54.35/81.17 = 44.11/x
  3. Step 3: Cross multiply
    54.35x = 81.17 × 44.11
  4. Step 4: Simplify right side
    54.35x = 3,580.41
  5. Step 5: Solve for x
    x = 3,580.41/54.35
  6. Step 6: Final answer
    x = 65.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.