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Finding the Third Proportional to 30,843 and 66,362

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Solution

The third proportional to 30,843 and 66,362 is: 142,784.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,843 : 66,362 = 66,362 : x
  2. Step 2: Convert to fraction form
    30,843/66,362 = 66,362/x
  3. Step 3: Cross multiply
    30,843x = 66,362 × 66,362
  4. Step 4: Simplify right side
    30,843x = 4,403,915,044
  5. Step 5: Solve for x
    x = 4,403,915,044/30,843
  6. Step 6: Final answer
    x = 142,784.91

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.