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Finding the Fourth Proportional to 75,504.80, 113,244 and 28,760.48

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Solution

The fourth proportional to 75,504.80, 113,244 and 28,760.48 is: 43,135.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,504.80 : 113,244 = 28,760.48 : x
  2. Step 2: Convert to fraction form
    75,504.80/113,244 = 28,760.48/x
  3. Step 3: Cross multiply
    75,504.80x = 113,244 × 28,760.48
  4. Step 4: Simplify right side
    75,504.80x = 3,256,951,797.12
  5. Step 5: Solve for x
    x = 3,256,951,797.12/75,504.80
  6. Step 6: Final answer
    x = 43,135.69

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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.