Home / 71.89-107.88-26.24

Finding the Fourth Proportional to 71.89, 107.88 and 26.24

Calculator

Solution

The fourth proportional to 71.89, 107.88 and 26.24 is: 39.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71.89 : 107.88 = 26.24 : x
  2. Step 2: Convert to fraction form
    71.89/107.88 = 26.24/x
  3. Step 3: Cross multiply
    71.89x = 107.88 × 26.24
  4. Step 4: Simplify right side
    71.89x = 2,830.64
  5. Step 5: Solve for x
    x = 2,830.64/71.89
  6. Step 6: Final answer
    x = 39.38

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.