Home / 75,418.52-104,078.43-41,427.80

Finding the Fourth Proportional to 75,418.52, 104,078.43 and 41,427.80

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Solution

The fourth proportional to 75,418.52, 104,078.43 and 41,427.80 is: 57,170.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,418.52 : 104,078.43 = 41,427.80 : x
  2. Step 2: Convert to fraction form
    75,418.52/104,078.43 = 41,427.80/x
  3. Step 3: Cross multiply
    75,418.52x = 104,078.43 × 41,427.80
  4. Step 4: Simplify right side
    75,418.52x = 4,311,740,382.35
  5. Step 5: Solve for x
    x = 4,311,740,382.35/75,418.52
  6. Step 6: Final answer
    x = 57,170.84

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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.