Home / 74,342.14-111,453.72-38,785.61

Finding the Fourth Proportional to 74,342.14, 111,453.72 and 38,785.61

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Solution

The fourth proportional to 74,342.14, 111,453.72 and 38,785.61 is: 58,147.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,342.14 : 111,453.72 = 38,785.61 : x
  2. Step 2: Convert to fraction form
    74,342.14/111,453.72 = 38,785.61/x
  3. Step 3: Cross multiply
    74,342.14x = 111,453.72 × 38,785.61
  4. Step 4: Simplify right side
    74,342.14x = 4,322,800,516.97
  5. Step 5: Solve for x
    x = 4,322,800,516.97/74,342.14
  6. Step 6: Final answer
    x = 58,147.38

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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.