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Finding the Third Proportional to 39,663 and 86,560.88

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Solution

The third proportional to 39,663 and 86,560.88 is: 188,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,663 : 86,560.88 = 86,560.88 : x
  2. Step 2: Convert to fraction form
    39,663/86,560.88 = 86,560.88/x
  3. Step 3: Cross multiply
    39,663x = 86,560.88 × 86,560.88
  4. Step 4: Simplify right side
    39,663x = 7,492,785,080.77
  5. Step 5: Solve for x
    x = 7,492,785,080.77/39,663
  6. Step 6: Final answer
    x = 188,911.20

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.