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Finding the Third Proportional to 34,618 and 51,869

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Solution

The third proportional to 34,618 and 51,869 is: 77,716.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,618 : 51,869 = 51,869 : x
  2. Step 2: Convert to fraction form
    34,618/51,869 = 51,869/x
  3. Step 3: Cross multiply
    34,618x = 51,869 × 51,869
  4. Step 4: Simplify right side
    34,618x = 2,690,393,161
  5. Step 5: Solve for x
    x = 2,690,393,161/34,618
  6. Step 6: Final answer
    x = 77,716.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.