Home / 77.43-116.28-74.01

Finding the Fourth Proportional to 77.43, 116.28 and 74.01

Calculator

Solution

The fourth proportional to 77.43, 116.28 and 74.01 is: 111.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77.43 : 116.28 = 74.01 : x
  2. Step 2: Convert to fraction form
    77.43/116.28 = 74.01/x
  3. Step 3: Cross multiply
    77.43x = 116.28 × 74.01
  4. Step 4: Simplify right side
    77.43x = 8,605.88
  5. Step 5: Solve for x
    x = 8,605.88/77.43
  6. Step 6: Final answer
    x = 111.14

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.