Home / 75,704.32-113,556.90-19,540.59

Finding the Fourth Proportional to 75,704.32, 113,556.90 and 19,540.59

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Solution

The fourth proportional to 75,704.32, 113,556.90 and 19,540.59 is: 29,310.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,704.32 : 113,556.90 = 19,540.59 : x
  2. Step 2: Convert to fraction form
    75,704.32/113,556.90 = 19,540.59/x
  3. Step 3: Cross multiply
    75,704.32x = 113,556.90 × 19,540.59
  4. Step 4: Simplify right side
    75,704.32x = 2,218,968,824.57
  5. Step 5: Solve for x
    x = 2,218,968,824.57/75,704.32
  6. Step 6: Final answer
    x = 29,310.99

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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.