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Finding the Third Proportional to 55,015 and 82,317.50

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Solution

The third proportional to 55,015 and 82,317.50 is: 123,169.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,015 : 82,317.50 = 82,317.50 : x
  2. Step 2: Convert to fraction form
    55,015/82,317.50 = 82,317.50/x
  3. Step 3: Cross multiply
    55,015x = 82,317.50 × 82,317.50
  4. Step 4: Simplify right side
    55,015x = 6,776,170,806.25
  5. Step 5: Solve for x
    x = 6,776,170,806.25/55,015
  6. Step 6: Final answer
    x = 123,169.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.