Home / 75,287.43-112,912.20-30,926.43

Finding the Fourth Proportional to 75,287.43, 112,912.20 and 30,926.43

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Solution

The fourth proportional to 75,287.43, 112,912.20 and 30,926.43 is: 46,381.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,287.43 : 112,912.20 = 30,926.43 : x
  2. Step 2: Convert to fraction form
    75,287.43/112,912.20 = 30,926.43/x
  3. Step 3: Cross multiply
    75,287.43x = 112,912.20 × 30,926.43
  4. Step 4: Simplify right side
    75,287.43x = 3,491,971,249.45
  5. Step 5: Solve for x
    x = 3,491,971,249.45/75,287.43
  6. Step 6: Final answer
    x = 46,381.86

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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.