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Finding the Fourth Proportional to 47.97, 71.91 and 32.76

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Solution

The fourth proportional to 47.97, 71.91 and 32.76 is: 49.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    47.97 : 71.91 = 32.76 : x
  2. Step 2: Convert to fraction form
    47.97/71.91 = 32.76/x
  3. Step 3: Cross multiply
    47.97x = 71.91 × 32.76
  4. Step 4: Simplify right side
    47.97x = 2,355.77
  5. Step 5: Solve for x
    x = 2,355.77/47.97
  6. Step 6: Final answer
    x = 49.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.