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Finding the Third Proportional to 51,869 and 82,574

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Solution

The third proportional to 51,869 and 82,574 is: 131,455.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,869 : 82,574 = 82,574 : x
  2. Step 2: Convert to fraction form
    51,869/82,574 = 82,574/x
  3. Step 3: Cross multiply
    51,869x = 82,574 × 82,574
  4. Step 4: Simplify right side
    51,869x = 6,818,465,476
  5. Step 5: Solve for x
    x = 6,818,465,476/51,869
  6. Step 6: Final answer
    x = 131,455.50

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.