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Finding the Fourth Proportional to 69.59, 104.33 and 35.38

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Solution

The fourth proportional to 69.59, 104.33 and 35.38 is: 53.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69.59 : 104.33 = 35.38 : x
  2. Step 2: Convert to fraction form
    69.59/104.33 = 35.38/x
  3. Step 3: Cross multiply
    69.59x = 104.33 × 35.38
  4. Step 4: Simplify right side
    69.59x = 3,690.85
  5. Step 5: Solve for x
    x = 3,690.85/69.59
  6. Step 6: Final answer
    x = 53.04

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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.