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Finding the Third Proportional to 55,330 and 79,539

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Solution

The third proportional to 55,330 and 79,539 is: 114,340.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,330 : 79,539 = 79,539 : x
  2. Step 2: Convert to fraction form
    55,330/79,539 = 79,539/x
  3. Step 3: Cross multiply
    55,330x = 79,539 × 79,539
  4. Step 4: Simplify right side
    55,330x = 6,326,452,521
  5. Step 5: Solve for x
    x = 6,326,452,521/55,330
  6. Step 6: Final answer
    x = 114,340.37

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.