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Finding the Third Proportional to 45.56 and 61.22

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Solution

The third proportional to 45.56 and 61.22 is: 82.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.56 : 61.22 = 61.22 : x
  2. Step 2: Convert to fraction form
    45.56/61.22 = 61.22/x
  3. Step 3: Cross multiply
    45.56x = 61.22 × 61.22
  4. Step 4: Simplify right side
    45.56x = 3,748.45
  5. Step 5: Solve for x
    x = 3,748.45/45.56
  6. Step 6: Final answer
    x = 82.27

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.