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Finding the Third Proportional to 45,629 and 68,258

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Solution

The third proportional to 45,629 and 68,258 is: 102,109.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,629 : 68,258 = 68,258 : x
  2. Step 2: Convert to fraction form
    45,629/68,258 = 68,258/x
  3. Step 3: Cross multiply
    45,629x = 68,258 × 68,258
  4. Step 4: Simplify right side
    45,629x = 4,659,154,564
  5. Step 5: Solve for x
    x = 4,659,154,564/45,629
  6. Step 6: Final answer
    x = 102,109.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.