Home / 36,089.80-54,135.12-11,129.64

Finding the Fourth Proportional to 36,089.80, 54,135.12 and 11,129.64

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Solution

The fourth proportional to 36,089.80, 54,135.12 and 11,129.64 is: 16,694.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,089.80 : 54,135.12 = 11,129.64 : x
  2. Step 2: Convert to fraction form
    36,089.80/54,135.12 = 11,129.64/x
  3. Step 3: Cross multiply
    36,089.80x = 54,135.12 × 11,129.64
  4. Step 4: Simplify right side
    36,089.80x = 602,504,396.96
  5. Step 5: Solve for x
    x = 602,504,396.96/36,089.80
  6. Step 6: Final answer
    x = 16,694.59

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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.