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Finding the Third Proportional to 29,859 and 64,378.50

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Solution

The third proportional to 29,859 and 64,378.50 is: 138,805.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,859 : 64,378.50 = 64,378.50 : x
  2. Step 2: Convert to fraction form
    29,859/64,378.50 = 64,378.50/x
  3. Step 3: Cross multiply
    29,859x = 64,378.50 × 64,378.50
  4. Step 4: Simplify right side
    29,859x = 4,144,591,262.25
  5. Step 5: Solve for x
    x = 4,144,591,262.25/29,859
  6. Step 6: Final answer
    x = 138,805.43

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.