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Finding the Third Proportional to 28,802.25 and 66,720.38

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Solution

The third proportional to 28,802.25 and 66,720.38 is: 154,557.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,802.25 : 66,720.38 = 66,720.38 : x
  2. Step 2: Convert to fraction form
    28,802.25/66,720.38 = 66,720.38/x
  3. Step 3: Cross multiply
    28,802.25x = 66,720.38 × 66,720.38
  4. Step 4: Simplify right side
    28,802.25x = 4,451,608,440.14
  5. Step 5: Solve for x
    x = 4,451,608,440.14/28,802.25
  6. Step 6: Final answer
    x = 154,557.66

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.