Home / 71.13-106.56-55.02

Finding the Fourth Proportional to 71.13, 106.56 and 55.02

Calculator

Solution

The fourth proportional to 71.13, 106.56 and 55.02 is: 82.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71.13 : 106.56 = 55.02 : x
  2. Step 2: Convert to fraction form
    71.13/106.56 = 55.02/x
  3. Step 3: Cross multiply
    71.13x = 106.56 × 55.02
  4. Step 4: Simplify right side
    71.13x = 5,862.93
  5. Step 5: Solve for x
    x = 5,862.93/71.13
  6. Step 6: Final answer
    x = 82.43

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.