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Finding the Fourth Proportional to 63.27, 86.68 and 60.84

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Solution

The fourth proportional to 63.27, 86.68 and 60.84 is: 83.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.27 : 86.68 = 60.84 : x
  2. Step 2: Convert to fraction form
    63.27/86.68 = 60.84/x
  3. Step 3: Cross multiply
    63.27x = 86.68 × 60.84
  4. Step 4: Simplify right side
    63.27x = 5,273.69
  5. Step 5: Solve for x
    x = 5,273.69/63.27
  6. Step 6: Final answer
    x = 83.35

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.