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Finding the Third Proportional to 36.28 and 55.55

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Solution

The third proportional to 36.28 and 55.55 is: 85.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.28 : 55.55 = 55.55 : x
  2. Step 2: Convert to fraction form
    36.28/55.55 = 55.55/x
  3. Step 3: Cross multiply
    36.28x = 55.55 × 55.55
  4. Step 4: Simplify right side
    36.28x = 3,085.46
  5. Step 5: Solve for x
    x = 3,085.46/36.28
  6. Step 6: Final answer
    x = 85.04

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.