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Finding the Third Proportional to 39,087 and 80,938

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Solution

The third proportional to 39,087 and 80,938 is: 167,599.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,087 : 80,938 = 80,938 : x
  2. Step 2: Convert to fraction form
    39,087/80,938 = 80,938/x
  3. Step 3: Cross multiply
    39,087x = 80,938 × 80,938
  4. Step 4: Simplify right side
    39,087x = 6,550,959,844
  5. Step 5: Solve for x
    x = 6,550,959,844/39,087
  6. Step 6: Final answer
    x = 167,599.45

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.