Home / 75,891.40-113,850.30-31,493.80

Finding the Fourth Proportional to 75,891.40, 113,850.30 and 31,493.80

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Solution

The fourth proportional to 75,891.40, 113,850.30 and 31,493.80 is: 47,246.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,891.40 : 113,850.30 = 31,493.80 : x
  2. Step 2: Convert to fraction form
    75,891.40/113,850.30 = 31,493.80/x
  3. Step 3: Cross multiply
    75,891.40x = 113,850.30 × 31,493.80
  4. Step 4: Simplify right side
    75,891.40x = 3,585,578,578.14
  5. Step 5: Solve for x
    x = 3,585,578,578.14/75,891.40
  6. Step 6: Final answer
    x = 47,246.18

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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.