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Finding the Third Proportional to 28,939.78 and 68,055.19

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Solution

The third proportional to 28,939.78 and 68,055.19 is: 160,039.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,939.78 : 68,055.19 = 68,055.19 : x
  2. Step 2: Convert to fraction form
    28,939.78/68,055.19 = 68,055.19/x
  3. Step 3: Cross multiply
    28,939.78x = 68,055.19 × 68,055.19
  4. Step 4: Simplify right side
    28,939.78x = 4,631,508,545.66
  5. Step 5: Solve for x
    x = 4,631,508,545.66/28,939.78
  6. Step 6: Final answer
    x = 160,039.51

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.