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Finding the Third Proportional to 57,010 and 87,702

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Solution

The third proportional to 57,010 and 87,702 is: 134,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,010 : 87,702 = 87,702 : x
  2. Step 2: Convert to fraction form
    57,010/87,702 = 87,702/x
  3. Step 3: Cross multiply
    57,010x = 87,702 × 87,702
  4. Step 4: Simplify right side
    57,010x = 7,691,640,804
  5. Step 5: Solve for x
    x = 7,691,640,804/57,010
  6. Step 6: Final answer
    x = 134,917.40

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.