Home / 76.26-114.32-42

Finding the Fourth Proportional to 76.26, 114.32 and 42

Calculator

Solution

The fourth proportional to 76.26, 114.32 and 42 is: 62.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76.26 : 114.32 = 42 : x
  2. Step 2: Convert to fraction form
    76.26/114.32 = 42/x
  3. Step 3: Cross multiply
    76.26x = 114.32 × 42
  4. Step 4: Simplify right side
    76.26x = 4,801.44
  5. Step 5: Solve for x
    x = 4,801.44/76.26
  6. Step 6: Final answer
    x = 62.96

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.