Home / 92.18-138.26-38.08

Finding the Fourth Proportional to 92.18, 138.26 and 38.08

Calculator

Solution

The fourth proportional to 92.18, 138.26 and 38.08 is: 57.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.18 : 138.26 = 38.08 : x
  2. Step 2: Convert to fraction form
    92.18/138.26 = 38.08/x
  3. Step 3: Cross multiply
    92.18x = 138.26 × 38.08
  4. Step 4: Simplify right side
    92.18x = 5,264.34
  5. Step 5: Solve for x
    x = 5,264.34/92.18
  6. Step 6: Final answer
    x = 57.11

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.