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Finding the Third Proportional to 51,926 and 81,363

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Solution

The third proportional to 51,926 and 81,363 is: 127,487.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,926 : 81,363 = 81,363 : x
  2. Step 2: Convert to fraction form
    51,926/81,363 = 81,363/x
  3. Step 3: Cross multiply
    51,926x = 81,363 × 81,363
  4. Step 4: Simplify right side
    51,926x = 6,619,937,769
  5. Step 5: Solve for x
    x = 6,619,937,769/51,926
  6. Step 6: Final answer
    x = 127,487.92

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.