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Finding the Third Proportional to 40,290.75 and 85,731.75

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Solution

The third proportional to 40,290.75 and 85,731.75 is: 182,422.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,290.75 : 85,731.75 = 85,731.75 : x
  2. Step 2: Convert to fraction form
    40,290.75/85,731.75 = 85,731.75/x
  3. Step 3: Cross multiply
    40,290.75x = 85,731.75 × 85,731.75
  4. Step 4: Simplify right side
    40,290.75x = 7,349,932,958.06
  5. Step 5: Solve for x
    x = 7,349,932,958.06/40,290.75
  6. Step 6: Final answer
    x = 182,422.34

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.