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Finding the Third Proportional to 39,479.06 and 51,220.69

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Solution

The third proportional to 39,479.06 and 51,220.69 is: 66,454.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,479.06 : 51,220.69 = 51,220.69 : x
  2. Step 2: Convert to fraction form
    39,479.06/51,220.69 = 51,220.69/x
  3. Step 3: Cross multiply
    39,479.06x = 51,220.69 × 51,220.69
  4. Step 4: Simplify right side
    39,479.06x = 2,623,558,827.97
  5. Step 5: Solve for x
    x = 2,623,558,827.97/39,479.06
  6. Step 6: Final answer
    x = 66,454.44

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.