Home / 84.58-126.17-75.48

Finding the Fourth Proportional to 84.58, 126.17 and 75.48

Calculator

Solution

The fourth proportional to 84.58, 126.17 and 75.48 is: 112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84.58 : 126.17 = 75.48 : x
  2. Step 2: Convert to fraction form
    84.58/126.17 = 75.48/x
  3. Step 3: Cross multiply
    84.58x = 126.17 × 75.48
  4. Step 4: Simplify right side
    84.58x = 9,523.31
  5. Step 5: Solve for x
    x = 9,523.31/84.58
  6. Step 6: Final answer
    x = 112.60

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.