Home / 55.15-76.08-33.31

Finding the Fourth Proportional to 55.15, 76.08 and 33.31

Calculator

Solution

The fourth proportional to 55.15, 76.08 and 33.31 is: 45.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.15 : 76.08 = 33.31 : x
  2. Step 2: Convert to fraction form
    55.15/76.08 = 33.31/x
  3. Step 3: Cross multiply
    55.15x = 76.08 × 33.31
  4. Step 4: Simplify right side
    55.15x = 2,534.16
  5. Step 5: Solve for x
    x = 2,534.16/55.15
  6. Step 6: Final answer
    x = 45.95

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.