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Finding the Third Proportional to 30,735 and 66,141

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Solution

The third proportional to 30,735 and 66,141 is: 142,333.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,735 : 66,141 = 66,141 : x
  2. Step 2: Convert to fraction form
    30,735/66,141 = 66,141/x
  3. Step 3: Cross multiply
    30,735x = 66,141 × 66,141
  4. Step 4: Simplify right side
    30,735x = 4,374,631,881
  5. Step 5: Solve for x
    x = 4,374,631,881/30,735
  6. Step 6: Final answer
    x = 142,333.88

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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.