Home / 40.18-55.33-36.09

Finding the Fourth Proportional to 40.18, 55.33 and 36.09

Calculator

Solution

The fourth proportional to 40.18, 55.33 and 36.09 is: 49.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40.18 : 55.33 = 36.09 : x
  2. Step 2: Convert to fraction form
    40.18/55.33 = 36.09/x
  3. Step 3: Cross multiply
    40.18x = 55.33 × 36.09
  4. Step 4: Simplify right side
    40.18x = 1,996.86
  5. Step 5: Solve for x
    x = 1,996.86/40.18
  6. Step 6: Final answer
    x = 49.70

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.