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Finding the Third Proportional to 30,823 and 63,106

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Solution

The third proportional to 30,823 and 63,106 is: 129,201.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,823 : 63,106 = 63,106 : x
  2. Step 2: Convert to fraction form
    30,823/63,106 = 63,106/x
  3. Step 3: Cross multiply
    30,823x = 63,106 × 63,106
  4. Step 4: Simplify right side
    30,823x = 3,982,367,236
  5. Step 5: Solve for x
    x = 3,982,367,236/30,823
  6. Step 6: Final answer
    x = 129,201.16

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.