Home / 75,974.24-113,952.40-47,811.20

Finding the Fourth Proportional to 75,974.24, 113,952.40 and 47,811.20

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Solution

The fourth proportional to 75,974.24, 113,952.40 and 47,811.20 is: 71,711.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,974.24 : 113,952.40 = 47,811.20 : x
  2. Step 2: Convert to fraction form
    75,974.24/113,952.40 = 47,811.20/x
  3. Step 3: Cross multiply
    75,974.24x = 113,952.40 × 47,811.20
  4. Step 4: Simplify right side
    75,974.24x = 5,448,200,986.88
  5. Step 5: Solve for x
    x = 5,448,200,986.88/75,974.24
  6. Step 6: Final answer
    x = 71,711.16

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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.