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Finding the Third Proportional to 18,873 and 51,340.50

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Solution

The third proportional to 18,873 and 51,340.50 is: 139,662.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873 : 51,340.50 = 51,340.50 : x
  2. Step 2: Convert to fraction form
    18,873/51,340.50 = 51,340.50/x
  3. Step 3: Cross multiply
    18,873x = 51,340.50 × 51,340.50
  4. Step 4: Simplify right side
    18,873x = 2,635,846,940.25
  5. Step 5: Solve for x
    x = 2,635,846,940.25/18,873
  6. Step 6: Final answer
    x = 139,662.32

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Why These Related Problems?

These problems maintain the same ratio (2.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.