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Finding the Fourth Proportional to 57.49, 86.22 and 23.26

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Solution

The fourth proportional to 57.49, 86.22 and 23.26 is: 34.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57.49 : 86.22 = 23.26 : x
  2. Step 2: Convert to fraction form
    57.49/86.22 = 23.26/x
  3. Step 3: Cross multiply
    57.49x = 86.22 × 23.26
  4. Step 4: Simplify right side
    57.49x = 2,005.48
  5. Step 5: Solve for x
    x = 2,005.48/57.49
  6. Step 6: Final answer
    x = 34.88

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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.