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Finding the Fourth Proportional to 108.01, 161.92 and 39.52

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Solution

The fourth proportional to 108.01, 161.92 and 39.52 is: 59.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.01 : 161.92 = 39.52 : x
  2. Step 2: Convert to fraction form
    108.01/161.92 = 39.52/x
  3. Step 3: Cross multiply
    108.01x = 161.92 × 39.52
  4. Step 4: Simplify right side
    108.01x = 6,399.08
  5. Step 5: Solve for x
    x = 6,399.08/108.01
  6. Step 6: Final answer
    x = 59.25

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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.