Home / 36,090.26-54,121.91-12,391.08

Finding the Fourth Proportional to 36,090.26, 54,121.91 and 12,391.08

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Solution

The fourth proportional to 36,090.26, 54,121.91 and 12,391.08 is: 18,581.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,090.26 : 54,121.91 = 12,391.08 : x
  2. Step 2: Convert to fraction form
    36,090.26/54,121.91 = 12,391.08/x
  3. Step 3: Cross multiply
    36,090.26x = 54,121.91 × 12,391.08
  4. Step 4: Simplify right side
    36,090.26x = 670,628,651.65
  5. Step 5: Solve for x
    x = 670,628,651.65/36,090.26
  6. Step 6: Final answer
    x = 18,581.99

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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.