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Finding the Third Proportional to 57,507 and 79,189

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Solution

The third proportional to 57,507 and 79,189 is: 109,045.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,507 : 79,189 = 79,189 : x
  2. Step 2: Convert to fraction form
    57,507/79,189 = 79,189/x
  3. Step 3: Cross multiply
    57,507x = 79,189 × 79,189
  4. Step 4: Simplify right side
    57,507x = 6,270,897,721
  5. Step 5: Solve for x
    x = 6,270,897,721/57,507
  6. Step 6: Final answer
    x = 109,045.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.