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Finding the Third Proportional to 39,929.75 and 85,399.75

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Solution

The third proportional to 39,929.75 and 85,399.75 is: 182,648.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,929.75 : 85,399.75 = 85,399.75 : x
  2. Step 2: Convert to fraction form
    39,929.75/85,399.75 = 85,399.75/x
  3. Step 3: Cross multiply
    39,929.75x = 85,399.75 × 85,399.75
  4. Step 4: Simplify right side
    39,929.75x = 7,293,117,300.06
  5. Step 5: Solve for x
    x = 7,293,117,300.06/39,929.75
  6. Step 6: Final answer
    x = 182,648.71

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.