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Finding the Third Proportional to 51,172 and 77,997

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Solution

The third proportional to 51,172 and 77,997 is: 118,884.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,172 : 77,997 = 77,997 : x
  2. Step 2: Convert to fraction form
    51,172/77,997 = 77,997/x
  3. Step 3: Cross multiply
    51,172x = 77,997 × 77,997
  4. Step 4: Simplify right side
    51,172x = 6,083,532,009
  5. Step 5: Solve for x
    x = 6,083,532,009/51,172
  6. Step 6: Final answer
    x = 118,884.00

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.