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Finding the Third Proportional to 39,945 and 87,363

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Solution

The third proportional to 39,945 and 87,363 is: 191,070.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,945 : 87,363 = 87,363 : x
  2. Step 2: Convert to fraction form
    39,945/87,363 = 87,363/x
  3. Step 3: Cross multiply
    39,945x = 87,363 × 87,363
  4. Step 4: Simplify right side
    39,945x = 7,632,293,769
  5. Step 5: Solve for x
    x = 7,632,293,769/39,945
  6. Step 6: Final answer
    x = 191,070.07

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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.