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Finding the Fourth Proportional to 59.97, 82.80 and 39.27

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Solution

The fourth proportional to 59.97, 82.80 and 39.27 is: 54.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.97 : 82.80 = 39.27 : x
  2. Step 2: Convert to fraction form
    59.97/82.80 = 39.27/x
  3. Step 3: Cross multiply
    59.97x = 82.80 × 39.27
  4. Step 4: Simplify right side
    59.97x = 3,251.56
  5. Step 5: Solve for x
    x = 3,251.56/59.97
  6. Step 6: Final answer
    x = 54.22

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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.