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Finding the Third Proportional to 30,988.13 and 63,609.75

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Solution

The third proportional to 30,988.13 and 63,609.75 is: 130,572.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,988.13 : 63,609.75 = 63,609.75 : x
  2. Step 2: Convert to fraction form
    30,988.13/63,609.75 = 63,609.75/x
  3. Step 3: Cross multiply
    30,988.13x = 63,609.75 × 63,609.75
  4. Step 4: Simplify right side
    30,988.13x = 4,046,200,295.06
  5. Step 5: Solve for x
    x = 4,046,200,295.06/30,988.13
  6. Step 6: Final answer
    x = 130,572.61

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.