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Finding the Fourth Proportional to 61.26, 84.48 and 37.95

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Solution

The fourth proportional to 61.26, 84.48 and 37.95 is: 52.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.26 : 84.48 = 37.95 : x
  2. Step 2: Convert to fraction form
    61.26/84.48 = 37.95/x
  3. Step 3: Cross multiply
    61.26x = 84.48 × 37.95
  4. Step 4: Simplify right side
    61.26x = 3,206.02
  5. Step 5: Solve for x
    x = 3,206.02/61.26
  6. Step 6: Final answer
    x = 52.33

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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.