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Finding the Third Proportional to 35,640 and 76,929

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Solution

The third proportional to 35,640 and 76,929 is: 166,051.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,640 : 76,929 = 76,929 : x
  2. Step 2: Convert to fraction form
    35,640/76,929 = 76,929/x
  3. Step 3: Cross multiply
    35,640x = 76,929 × 76,929
  4. Step 4: Simplify right side
    35,640x = 5,918,071,041
  5. Step 5: Solve for x
    x = 5,918,071,041/35,640
  6. Step 6: Final answer
    x = 166,051.38

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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.