Home / 54.64-81.96-33.28

Finding the Fourth Proportional to 54.64, 81.96 and 33.28

Calculator

Solution

The fourth proportional to 54.64, 81.96 and 33.28 is: 49.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54.64 : 81.96 = 33.28 : x
  2. Step 2: Convert to fraction form
    54.64/81.96 = 33.28/x
  3. Step 3: Cross multiply
    54.64x = 81.96 × 33.28
  4. Step 4: Simplify right side
    54.64x = 2,727.63
  5. Step 5: Solve for x
    x = 2,727.63/54.64
  6. Step 6: Final answer
    x = 49.92

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.