Home / 45,083.44-67,631.32-18,782.03

Finding the Fourth Proportional to 45,083.44, 67,631.32 and 18,782.03

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Solution

The fourth proportional to 45,083.44, 67,631.32 and 18,782.03 is: 28,175.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,083.44 : 67,631.32 = 18,782.03 : x
  2. Step 2: Convert to fraction form
    45,083.44/67,631.32 = 18,782.03/x
  3. Step 3: Cross multiply
    45,083.44x = 67,631.32 × 18,782.03
  4. Step 4: Simplify right side
    45,083.44x = 1,270,253,387.27
  5. Step 5: Solve for x
    x = 1,270,253,387.27/45,083.44
  6. Step 6: Final answer
    x = 28,175.61

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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.