Home / 74,163.74-111,286.11-31,462.58

Finding the Fourth Proportional to 74,163.74, 111,286.11 and 31,462.58

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Solution

The fourth proportional to 74,163.74, 111,286.11 and 31,462.58 is: 47,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,163.74 : 111,286.11 = 31,462.58 : x
  2. Step 2: Convert to fraction form
    74,163.74/111,286.11 = 31,462.58/x
  3. Step 3: Cross multiply
    74,163.74x = 111,286.11 × 31,462.58
  4. Step 4: Simplify right side
    74,163.74x = 3,501,347,582.33
  5. Step 5: Solve for x
    x = 3,501,347,582.33/74,163.74
  6. Step 6: Final answer
    x = 47,211.05

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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.