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Finding the Fourth Proportional to 44.17, 61.27 and 42.55

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Solution

The fourth proportional to 44.17, 61.27 and 42.55 is: 59.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.17 : 61.27 = 42.55 : x
  2. Step 2: Convert to fraction form
    44.17/61.27 = 42.55/x
  3. Step 3: Cross multiply
    44.17x = 61.27 × 42.55
  4. Step 4: Simplify right side
    44.17x = 2,607.04
  5. Step 5: Solve for x
    x = 2,607.04/44.17
  6. Step 6: Final answer
    x = 59.02

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.