Home / 75,616.20-113,375.70-31,260.60

Finding the Fourth Proportional to 75,616.20, 113,375.70 and 31,260.60

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Solution

The fourth proportional to 75,616.20, 113,375.70 and 31,260.60 is: 46,870.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,616.20 : 113,375.70 = 31,260.60 : x
  2. Step 2: Convert to fraction form
    75,616.20/113,375.70 = 31,260.60/x
  3. Step 3: Cross multiply
    75,616.20x = 113,375.70 × 31,260.60
  4. Step 4: Simplify right side
    75,616.20x = 3,544,192,407.42
  5. Step 5: Solve for x
    x = 3,544,192,407.42/75,616.20
  6. Step 6: Final answer
    x = 46,870.81

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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.