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Finding the Fourth Proportional to 66,727.80, 100,004.22 and 27,239.69

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Solution

The fourth proportional to 66,727.80, 100,004.22 and 27,239.69 is: 40,823.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,727.80 : 100,004.22 = 27,239.69 : x
  2. Step 2: Convert to fraction form
    66,727.80/100,004.22 = 27,239.69/x
  3. Step 3: Cross multiply
    66,727.80x = 100,004.22 × 27,239.69
  4. Step 4: Simplify right side
    66,727.80x = 2,724,084,201.50
  5. Step 5: Solve for x
    x = 2,724,084,201.50/66,727.80
  6. Step 6: Final answer
    x = 40,823.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.