Home / 79.88-119.74-34.24

Finding the Fourth Proportional to 79.88, 119.74 and 34.24

Calculator

Solution

The fourth proportional to 79.88, 119.74 and 34.24 is: 51.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.88 : 119.74 = 34.24 : x
  2. Step 2: Convert to fraction form
    79.88/119.74 = 34.24/x
  3. Step 3: Cross multiply
    79.88x = 119.74 × 34.24
  4. Step 4: Simplify right side
    79.88x = 4,099.90
  5. Step 5: Solve for x
    x = 4,099.90/79.88
  6. Step 6: Final answer
    x = 51.33

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.