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Finding the Third Proportional to 61,286 and 84,395

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Solution

The third proportional to 61,286 and 84,395 is: 116,217.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,286 : 84,395 = 84,395 : x
  2. Step 2: Convert to fraction form
    61,286/84,395 = 84,395/x
  3. Step 3: Cross multiply
    61,286x = 84,395 × 84,395
  4. Step 4: Simplify right side
    61,286x = 7,122,516,025
  5. Step 5: Solve for x
    x = 7,122,516,025/61,286
  6. Step 6: Final answer
    x = 116,217.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.