Home / 77.66-116.49-26.30

Finding the Fourth Proportional to 77.66, 116.49 and 26.30

Calculator

Solution

The fourth proportional to 77.66, 116.49 and 26.30 is: 39.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77.66 : 116.49 = 26.30 : x
  2. Step 2: Convert to fraction form
    77.66/116.49 = 26.30/x
  3. Step 3: Cross multiply
    77.66x = 116.49 × 26.30
  4. Step 4: Simplify right side
    77.66x = 3,063.10
  5. Step 5: Solve for x
    x = 3,063.10/77.66
  6. Step 6: Final answer
    x = 39.45

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.