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Finding the Third Proportional to 30,681.91 and 66,204.84

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Solution

The third proportional to 30,681.91 and 66,204.84 is: 142,855.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,681.91 : 66,204.84 = 66,204.84 : x
  2. Step 2: Convert to fraction form
    30,681.91/66,204.84 = 66,204.84/x
  3. Step 3: Cross multiply
    30,681.91x = 66,204.84 × 66,204.84
  4. Step 4: Simplify right side
    30,681.91x = 4,383,081,335.96
  5. Step 5: Solve for x
    x = 4,383,081,335.96/30,681.91
  6. Step 6: Final answer
    x = 142,855.54

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.