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Finding the Third Proportional to 25.45 and 55.62

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Solution

The third proportional to 25.45 and 55.62 is: 121.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.45 : 55.62 = 55.62 : x
  2. Step 2: Convert to fraction form
    25.45/55.62 = 55.62/x
  3. Step 3: Cross multiply
    25.45x = 55.62 × 55.62
  4. Step 4: Simplify right side
    25.45x = 3,093.27
  5. Step 5: Solve for x
    x = 3,093.27/25.45
  6. Step 6: Final answer
    x = 121.53

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.