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Finding the Fourth Proportional to 83.12, 125.15 and 60.44

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Solution

The fourth proportional to 83.12, 125.15 and 60.44 is: 91.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    83.12 : 125.15 = 60.44 : x
  2. Step 2: Convert to fraction form
    83.12/125.15 = 60.44/x
  3. Step 3: Cross multiply
    83.12x = 125.15 × 60.44
  4. Step 4: Simplify right side
    83.12x = 7,563.14
  5. Step 5: Solve for x
    x = 7,563.14/83.12
  6. Step 6: Final answer
    x = 91.00

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.