Home / 53-79.42-40.94

Finding the Fourth Proportional to 53, 79.42 and 40.94

Calculator

Solution

The fourth proportional to 53, 79.42 and 40.94 is: 61.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53 : 79.42 = 40.94 : x
  2. Step 2: Convert to fraction form
    53/79.42 = 40.94/x
  3. Step 3: Cross multiply
    53x = 79.42 × 40.94
  4. Step 4: Simplify right side
    53x = 3,251.45
  5. Step 5: Solve for x
    x = 3,251.45/53
  6. Step 6: Final answer
    x = 61.35

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.