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Finding the Fourth Proportional to 44.67, 61.61 and 28.29

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Solution

The fourth proportional to 44.67, 61.61 and 28.29 is: 39.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.67 : 61.61 = 28.29 : x
  2. Step 2: Convert to fraction form
    44.67/61.61 = 28.29/x
  3. Step 3: Cross multiply
    44.67x = 61.61 × 28.29
  4. Step 4: Simplify right side
    44.67x = 1,742.95
  5. Step 5: Solve for x
    x = 1,742.95/44.67
  6. Step 6: Final answer
    x = 39.02

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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.