Home / 78,284.22-117,375.29-33,282.24

Finding the Fourth Proportional to 78,284.22, 117,375.29 and 33,282.24

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Solution

The fourth proportional to 78,284.22, 117,375.29 and 33,282.24 is: 49,901.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,284.22 : 117,375.29 = 33,282.24 : x
  2. Step 2: Convert to fraction form
    78,284.22/117,375.29 = 33,282.24/x
  3. Step 3: Cross multiply
    78,284.22x = 117,375.29 × 33,282.24
  4. Step 4: Simplify right side
    78,284.22x = 3,906,511,984.97
  5. Step 5: Solve for x
    x = 3,906,511,984.97/78,284.22
  6. Step 6: Final answer
    x = 49,901.66

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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.