Home / 76.75-105.91-43.99

Finding the Fourth Proportional to 76.75, 105.91 and 43.99

Calculator

Solution

The fourth proportional to 76.75, 105.91 and 43.99 is: 60.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76.75 : 105.91 = 43.99 : x
  2. Step 2: Convert to fraction form
    76.75/105.91 = 43.99/x
  3. Step 3: Cross multiply
    76.75x = 105.91 × 43.99
  4. Step 4: Simplify right side
    76.75x = 4,659.20
  5. Step 5: Solve for x
    x = 4,659.20/76.75
  6. Step 6: Final answer
    x = 60.71

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.