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Finding the Third Proportional to 19,090 and 40,366

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Solution

The third proportional to 19,090 and 40,366 is: 85,354.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090 : 40,366 = 40,366 : x
  2. Step 2: Convert to fraction form
    19,090/40,366 = 40,366/x
  3. Step 3: Cross multiply
    19,090x = 40,366 × 40,366
  4. Step 4: Simplify right side
    19,090x = 1,629,413,956
  5. Step 5: Solve for x
    x = 1,629,413,956/19,090
  6. Step 6: Final answer
    x = 85,354.32

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.