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Finding the Third Proportional to 55,663 and 86,201

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Solution

The third proportional to 55,663 and 86,201 is: 133,492.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,663 : 86,201 = 86,201 : x
  2. Step 2: Convert to fraction form
    55,663/86,201 = 86,201/x
  3. Step 3: Cross multiply
    55,663x = 86,201 × 86,201
  4. Step 4: Simplify right side
    55,663x = 7,430,612,401
  5. Step 5: Solve for x
    x = 7,430,612,401/55,663
  6. Step 6: Final answer
    x = 133,492.85

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.