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Finding the Third Proportional to 38,739.52 and 79,119.28

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Solution

The third proportional to 38,739.52 and 79,119.28 is: 161,588.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,739.52 : 79,119.28 = 79,119.28 : x
  2. Step 2: Convert to fraction form
    38,739.52/79,119.28 = 79,119.28/x
  3. Step 3: Cross multiply
    38,739.52x = 79,119.28 × 79,119.28
  4. Step 4: Simplify right side
    38,739.52x = 6,259,860,665.52
  5. Step 5: Solve for x
    x = 6,259,860,665.52/38,739.52
  6. Step 6: Final answer
    x = 161,588.51

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.