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Finding the Fourth Proportional to 111,975, 167,979.78 and 41,864.28

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Solution

The fourth proportional to 111,975, 167,979.78 and 41,864.28 is: 62,802.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,975 : 167,979.78 = 41,864.28 : x
  2. Step 2: Convert to fraction form
    111,975/167,979.78 = 41,864.28/x
  3. Step 3: Cross multiply
    111,975x = 167,979.78 × 41,864.28
  4. Step 4: Simplify right side
    111,975x = 7,032,352,544.26
  5. Step 5: Solve for x
    x = 7,032,352,544.26/111,975
  6. Step 6: Final answer
    x = 62,802.88

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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.