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Finding the Third Proportional to 45.38 and 66.56

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Solution

The third proportional to 45.38 and 66.56 is: 97.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.38 : 66.56 = 66.56 : x
  2. Step 2: Convert to fraction form
    45.38/66.56 = 66.56/x
  3. Step 3: Cross multiply
    45.38x = 66.56 × 66.56
  4. Step 4: Simplify right side
    45.38x = 4,430.57
  5. Step 5: Solve for x
    x = 4,430.57/45.38
  6. Step 6: Final answer
    x = 97.64

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.