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Finding the Fourth Proportional to 67.38, 101.22 and 48.17

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Solution

The fourth proportional to 67.38, 101.22 and 48.17 is: 72.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.38 : 101.22 = 48.17 : x
  2. Step 2: Convert to fraction form
    67.38/101.22 = 48.17/x
  3. Step 3: Cross multiply
    67.38x = 101.22 × 48.17
  4. Step 4: Simplify right side
    67.38x = 4,875.84
  5. Step 5: Solve for x
    x = 4,875.84/67.38
  6. Step 6: Final answer
    x = 72.37

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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.