Home / 68.26-102.25-47.88

Finding the Fourth Proportional to 68.26, 102.25 and 47.88

Calculator

Solution

The fourth proportional to 68.26, 102.25 and 47.88 is: 71.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.26 : 102.25 = 47.88 : x
  2. Step 2: Convert to fraction form
    68.26/102.25 = 47.88/x
  3. Step 3: Cross multiply
    68.26x = 102.25 × 47.88
  4. Step 4: Simplify right side
    68.26x = 4,895.73
  5. Step 5: Solve for x
    x = 4,895.73/68.26
  6. Step 6: Final answer
    x = 71.72

Related Problems

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.