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Finding the Third Proportional to 50,878 and 77,836

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Solution

The third proportional to 50,878 and 77,836 is: 119,077.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,878 : 77,836 = 77,836 : x
  2. Step 2: Convert to fraction form
    50,878/77,836 = 77,836/x
  3. Step 3: Cross multiply
    50,878x = 77,836 × 77,836
  4. Step 4: Simplify right side
    50,878x = 6,058,442,896
  5. Step 5: Solve for x
    x = 6,058,442,896/50,878
  6. Step 6: Final answer
    x = 119,077.85

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.