Home / 75,540.60-113,398.20-40,548.60

Finding the Fourth Proportional to 75,540.60, 113,398.20 and 40,548.60

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Solution

The fourth proportional to 75,540.60, 113,398.20 and 40,548.60 is: 60,869.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,540.60 : 113,398.20 = 40,548.60 : x
  2. Step 2: Convert to fraction form
    75,540.60/113,398.20 = 40,548.60/x
  3. Step 3: Cross multiply
    75,540.60x = 113,398.20 × 40,548.60
  4. Step 4: Simplify right side
    75,540.60x = 4,598,138,252.52
  5. Step 5: Solve for x
    x = 4,598,138,252.52/75,540.60
  6. Step 6: Final answer
    x = 60,869.76

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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.