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Finding the Third Proportional to 19,156 and 40,631

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Solution

The third proportional to 19,156 and 40,631 is: 86,180.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156 : 40,631 = 40,631 : x
  2. Step 2: Convert to fraction form
    19,156/40,631 = 40,631/x
  3. Step 3: Cross multiply
    19,156x = 40,631 × 40,631
  4. Step 4: Simplify right side
    19,156x = 1,650,878,161
  5. Step 5: Solve for x
    x = 1,650,878,161/19,156
  6. Step 6: Final answer
    x = 86,180.74

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.