Home / 45,175.78-67,766.99-11,895.61

Finding the Fourth Proportional to 45,175.78, 67,766.99 and 11,895.61

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Solution

The fourth proportional to 45,175.78, 67,766.99 and 11,895.61 is: 17,844.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,175.78 : 67,766.99 = 11,895.61 : x
  2. Step 2: Convert to fraction form
    45,175.78/67,766.99 = 11,895.61/x
  3. Step 3: Cross multiply
    45,175.78x = 67,766.99 × 11,895.61
  4. Step 4: Simplify right side
    45,175.78x = 806,129,665.72
  5. Step 5: Solve for x
    x = 806,129,665.72/45,175.78
  6. Step 6: Final answer
    x = 17,844.29

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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.