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Finding the Third Proportional to 31,998 and 66,040.50

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Solution

The third proportional to 31,998 and 66,040.50 is: 136,300.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,998 : 66,040.50 = 66,040.50 : x
  2. Step 2: Convert to fraction form
    31,998/66,040.50 = 66,040.50/x
  3. Step 3: Cross multiply
    31,998x = 66,040.50 × 66,040.50
  4. Step 4: Simplify right side
    31,998x = 4,361,347,640.25
  5. Step 5: Solve for x
    x = 4,361,347,640.25/31,998
  6. Step 6: Final answer
    x = 136,300.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.