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Finding the Third Proportional to 39,480.75 and 86,342.25

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Solution

The third proportional to 39,480.75 and 86,342.25 is: 188,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,480.75 : 86,342.25 = 86,342.25 : x
  2. Step 2: Convert to fraction form
    39,480.75/86,342.25 = 86,342.25/x
  3. Step 3: Cross multiply
    39,480.75x = 86,342.25 × 86,342.25
  4. Step 4: Simplify right side
    39,480.75x = 7,454,984,135.06
  5. Step 5: Solve for x
    x = 7,454,984,135.06/39,480.75
  6. Step 6: Final answer
    x = 188,825.80

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.