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Finding the Fourth Proportional to 96.23, 132.76 and 63.47

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Solution

The fourth proportional to 96.23, 132.76 and 63.47 is: 87.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.23 : 132.76 = 63.47 : x
  2. Step 2: Convert to fraction form
    96.23/132.76 = 63.47/x
  3. Step 3: Cross multiply
    96.23x = 132.76 × 63.47
  4. Step 4: Simplify right side
    96.23x = 8,425.45
  5. Step 5: Solve for x
    x = 8,425.45/96.23
  6. Step 6: Final answer
    x = 87.56

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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.