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Finding the Fourth Proportional to 55.33, 82.96 and 22.81

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Solution

The fourth proportional to 55.33, 82.96 and 22.81 is: 34.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.33 : 82.96 = 22.81 : x
  2. Step 2: Convert to fraction form
    55.33/82.96 = 22.81/x
  3. Step 3: Cross multiply
    55.33x = 82.96 × 22.81
  4. Step 4: Simplify right side
    55.33x = 1,892.20
  5. Step 5: Solve for x
    x = 1,892.20/55.33
  6. Step 6: Final answer
    x = 34.20

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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.