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Finding the Third Proportional to 58.22 and 79.73

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Solution

The third proportional to 58.22 and 79.73 is: 109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.22 : 79.73 = 79.73 : x
  2. Step 2: Convert to fraction form
    58.22/79.73 = 79.73/x
  3. Step 3: Cross multiply
    58.22x = 79.73 × 79.73
  4. Step 4: Simplify right side
    58.22x = 6,357.57
  5. Step 5: Solve for x
    x = 6,357.57/58.22
  6. Step 6: Final answer
    x = 109.20

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.