Home / 53,611.92-80,418.49-18,543.38

Finding the Fourth Proportional to 53,611.92, 80,418.49 and 18,543.38

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Solution

The fourth proportional to 53,611.92, 80,418.49 and 18,543.38 is: 27,815.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,611.92 : 80,418.49 = 18,543.38 : x
  2. Step 2: Convert to fraction form
    53,611.92/80,418.49 = 18,543.38/x
  3. Step 3: Cross multiply
    53,611.92x = 80,418.49 × 18,543.38
  4. Step 4: Simplify right side
    53,611.92x = 1,491,230,170.65
  5. Step 5: Solve for x
    x = 1,491,230,170.65/53,611.92
  6. Step 6: Final answer
    x = 27,815.27

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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.