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Finding the Fourth Proportional to 80,144.65, 110,579.74 and 51,816.25

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Solution

The fourth proportional to 80,144.65, 110,579.74 and 51,816.25 is: 71,493.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,144.65 : 110,579.74 = 51,816.25 : x
  2. Step 2: Convert to fraction form
    80,144.65/110,579.74 = 51,816.25/x
  3. Step 3: Cross multiply
    80,144.65x = 110,579.74 × 51,816.25
  4. Step 4: Simplify right side
    80,144.65x = 5,729,827,452.78
  5. Step 5: Solve for x
    x = 5,729,827,452.78/80,144.65
  6. Step 6: Final answer
    x = 71,493.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.