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Finding the Fourth Proportional to 61.89, 85.31 and 44.37

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Solution

The fourth proportional to 61.89, 85.31 and 44.37 is: 61.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.89 : 85.31 = 44.37 : x
  2. Step 2: Convert to fraction form
    61.89/85.31 = 44.37/x
  3. Step 3: Cross multiply
    61.89x = 85.31 × 44.37
  4. Step 4: Simplify right side
    61.89x = 3,785.20
  5. Step 5: Solve for x
    x = 3,785.20/61.89
  6. Step 6: Final answer
    x = 61.16

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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.