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Finding the Fourth Proportional to 73.38, 101.39 and 69.33

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Solution

The fourth proportional to 73.38, 101.39 and 69.33 is: 95.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.38 : 101.39 = 69.33 : x
  2. Step 2: Convert to fraction form
    73.38/101.39 = 69.33/x
  3. Step 3: Cross multiply
    73.38x = 101.39 × 69.33
  4. Step 4: Simplify right side
    73.38x = 7,029.02
  5. Step 5: Solve for x
    x = 7,029.02/73.38
  6. Step 6: Final answer
    x = 95.79

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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.