Home / 67.75-101.72-58.18

Finding the Fourth Proportional to 67.75, 101.72 and 58.18

Calculator

Solution

The fourth proportional to 67.75, 101.72 and 58.18 is: 87.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.75 : 101.72 = 58.18 : x
  2. Step 2: Convert to fraction form
    67.75/101.72 = 58.18/x
  3. Step 3: Cross multiply
    67.75x = 101.72 × 58.18
  4. Step 4: Simplify right side
    67.75x = 5,917.78
  5. Step 5: Solve for x
    x = 5,917.78/67.75
  6. Step 6: Final answer
    x = 87.35

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.