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Finding the Fourth Proportional to 44.73, 67.48 and 42.23

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Solution

The fourth proportional to 44.73, 67.48 and 42.23 is: 63.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.73 : 67.48 = 42.23 : x
  2. Step 2: Convert to fraction form
    44.73/67.48 = 42.23/x
  3. Step 3: Cross multiply
    44.73x = 67.48 × 42.23
  4. Step 4: Simplify right side
    44.73x = 2,849.74
  5. Step 5: Solve for x
    x = 2,849.74/44.73
  6. Step 6: Final answer
    x = 63.71

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.