Home / 72.54-109.04-67.37

Finding the Fourth Proportional to 72.54, 109.04 and 67.37

Calculator

Solution

The fourth proportional to 72.54, 109.04 and 67.37 is: 101.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72.54 : 109.04 = 67.37 : x
  2. Step 2: Convert to fraction form
    72.54/109.04 = 67.37/x
  3. Step 3: Cross multiply
    72.54x = 109.04 × 67.37
  4. Step 4: Simplify right side
    72.54x = 7,345.14
  5. Step 5: Solve for x
    x = 7,345.14/72.54
  6. Step 6: Final answer
    x = 101.26

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.