Home / 43.92-65.36-42.30

Finding the Fourth Proportional to 43.92, 65.36 and 42.30

Calculator

Solution

The fourth proportional to 43.92, 65.36 and 42.30 is: 62.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.92 : 65.36 = 42.30 : x
  2. Step 2: Convert to fraction form
    43.92/65.36 = 42.30/x
  3. Step 3: Cross multiply
    43.92x = 65.36 × 42.30
  4. Step 4: Simplify right side
    43.92x = 2,764.83
  5. Step 5: Solve for x
    x = 2,764.83/43.92
  6. Step 6: Final answer
    x = 62.95

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.