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Finding the Fourth Proportional to 60.27, 83.22 and 38.43

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Solution

The fourth proportional to 60.27, 83.22 and 38.43 is: 53.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.27 : 83.22 = 38.43 : x
  2. Step 2: Convert to fraction form
    60.27/83.22 = 38.43/x
  3. Step 3: Cross multiply
    60.27x = 83.22 × 38.43
  4. Step 4: Simplify right side
    60.27x = 3,198.14
  5. Step 5: Solve for x
    x = 3,198.14/60.27
  6. Step 6: Final answer
    x = 53.06

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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.