Home / 87.57-131.32-26.69

Finding the Fourth Proportional to 87.57, 131.32 and 26.69

Calculator

Solution

The fourth proportional to 87.57, 131.32 and 26.69 is: 40.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87.57 : 131.32 = 26.69 : x
  2. Step 2: Convert to fraction form
    87.57/131.32 = 26.69/x
  3. Step 3: Cross multiply
    87.57x = 131.32 × 26.69
  4. Step 4: Simplify right side
    87.57x = 3,504.80
  5. Step 5: Solve for x
    x = 3,504.80/87.57
  6. Step 6: Final answer
    x = 40.02

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.