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Finding the Third Proportional to 30,846 and 66,977.25

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Solution

The third proportional to 30,846 and 66,977.25 is: 145,430.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,846 : 66,977.25 = 66,977.25 : x
  2. Step 2: Convert to fraction form
    30,846/66,977.25 = 66,977.25/x
  3. Step 3: Cross multiply
    30,846x = 66,977.25 × 66,977.25
  4. Step 4: Simplify right side
    30,846x = 4,485,952,017.56
  5. Step 5: Solve for x
    x = 4,485,952,017.56/30,846
  6. Step 6: Final answer
    x = 145,430.59

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.