Home / 74,542.13-111,813.78-27,191.15

Finding the Fourth Proportional to 74,542.13, 111,813.78 and 27,191.15

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Solution

The fourth proportional to 74,542.13, 111,813.78 and 27,191.15 is: 40,786.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,542.13 : 111,813.78 = 27,191.15 : x
  2. Step 2: Convert to fraction form
    74,542.13/111,813.78 = 27,191.15/x
  3. Step 3: Cross multiply
    74,542.13x = 111,813.78 × 27,191.15
  4. Step 4: Simplify right side
    74,542.13x = 3,040,344,704.98
  5. Step 5: Solve for x
    x = 3,040,344,704.98/74,542.13
  6. Step 6: Final answer
    x = 40,786.93

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1.5x scale

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.