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Finding the Third Proportional to 34,878 and 74,676

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Solution

The third proportional to 34,878 and 74,676 is: 159,886.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,878 : 74,676 = 74,676 : x
  2. Step 2: Convert to fraction form
    34,878/74,676 = 74,676/x
  3. Step 3: Cross multiply
    34,878x = 74,676 × 74,676
  4. Step 4: Simplify right side
    34,878x = 5,576,504,976
  5. Step 5: Solve for x
    x = 5,576,504,976/34,878
  6. Step 6: Final answer
    x = 159,886.03

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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.