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Finding the Third Proportional to 19,275 and 40,089

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Solution

The third proportional to 19,275 and 40,089 is: 83,378.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,275 : 40,089 = 40,089 : x
  2. Step 2: Convert to fraction form
    19,275/40,089 = 40,089/x
  3. Step 3: Cross multiply
    19,275x = 40,089 × 40,089
  4. Step 4: Simplify right side
    19,275x = 1,607,127,921
  5. Step 5: Solve for x
    x = 1,607,127,921/19,275
  6. Step 6: Final answer
    x = 83,378.88

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.