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Finding the Third Proportional to 50.63 and 77.20

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Solution

The third proportional to 50.63 and 77.20 is: 117.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.63 : 77.20 = 77.20 : x
  2. Step 2: Convert to fraction form
    50.63/77.20 = 77.20/x
  3. Step 3: Cross multiply
    50.63x = 77.20 × 77.20
  4. Step 4: Simplify right side
    50.63x = 5,960.32
  5. Step 5: Solve for x
    x = 5,960.32/50.63
  6. Step 6: Final answer
    x = 117.73

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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.