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Finding the Third Proportional to 30,850 and 66,080

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Solution

The third proportional to 30,850 and 66,080 is: 141,541.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,850 : 66,080 = 66,080 : x
  2. Step 2: Convert to fraction form
    30,850/66,080 = 66,080/x
  3. Step 3: Cross multiply
    30,850x = 66,080 × 66,080
  4. Step 4: Simplify right side
    30,850x = 4,366,566,400
  5. Step 5: Solve for x
    x = 4,366,566,400/30,850
  6. Step 6: Final answer
    x = 141,541.86

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.