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Finding the Third Proportional to 28,170 and 57,119

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Solution

The third proportional to 28,170 and 57,119 is: 115,817.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,170 : 57,119 = 57,119 : x
  2. Step 2: Convert to fraction form
    28,170/57,119 = 57,119/x
  3. Step 3: Cross multiply
    28,170x = 57,119 × 57,119
  4. Step 4: Simplify right side
    28,170x = 3,262,580,161
  5. Step 5: Solve for x
    x = 3,262,580,161/28,170
  6. Step 6: Final answer
    x = 115,817.54

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.