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Finding the Third Proportional to 60,469 and 91,999

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Solution

The third proportional to 60,469 and 91,999 is: 139,969.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,469 : 91,999 = 91,999 : x
  2. Step 2: Convert to fraction form
    60,469/91,999 = 91,999/x
  3. Step 3: Cross multiply
    60,469x = 91,999 × 91,999
  4. Step 4: Simplify right side
    60,469x = 8,463,816,001
  5. Step 5: Solve for x
    x = 8,463,816,001/60,469
  6. Step 6: Final answer
    x = 139,969.51

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.