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Finding the Third Proportional to 57,029 and 85,228

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Solution

The third proportional to 57,029 and 85,228 is: 127,370.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,029 : 85,228 = 85,228 : x
  2. Step 2: Convert to fraction form
    57,029/85,228 = 85,228/x
  3. Step 3: Cross multiply
    57,029x = 85,228 × 85,228
  4. Step 4: Simplify right side
    57,029x = 7,263,811,984
  5. Step 5: Solve for x
    x = 7,263,811,984/57,029
  6. Step 6: Final answer
    x = 127,370.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.