Home / 75,629.93-113,297.27-45,974.21

Finding the Fourth Proportional to 75,629.93, 113,297.27 and 45,974.21

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Solution

The fourth proportional to 75,629.93, 113,297.27 and 45,974.21 is: 68,871.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,629.93 : 113,297.27 = 45,974.21 : x
  2. Step 2: Convert to fraction form
    75,629.93/113,297.27 = 45,974.21/x
  3. Step 3: Cross multiply
    75,629.93x = 113,297.27 × 45,974.21
  4. Step 4: Simplify right side
    75,629.93x = 5,208,751,687.05
  5. Step 5: Solve for x
    x = 5,208,751,687.05/75,629.93
  6. Step 6: Final answer
    x = 68,871.57

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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.