Home / 79.67-119.49-55.24

Finding the Fourth Proportional to 79.67, 119.49 and 55.24

Calculator

Solution

The fourth proportional to 79.67, 119.49 and 55.24 is: 82.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.67 : 119.49 = 55.24 : x
  2. Step 2: Convert to fraction form
    79.67/119.49 = 55.24/x
  3. Step 3: Cross multiply
    79.67x = 119.49 × 55.24
  4. Step 4: Simplify right side
    79.67x = 6,600.63
  5. Step 5: Solve for x
    x = 6,600.63/79.67
  6. Step 6: Final answer
    x = 82.85

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.