Home / 79.62-109.83-50.53

Finding the Fourth Proportional to 79.62, 109.83 and 50.53

Calculator

Solution

The fourth proportional to 79.62, 109.83 and 50.53 is: 69.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.62 : 109.83 = 50.53 : x
  2. Step 2: Convert to fraction form
    79.62/109.83 = 50.53/x
  3. Step 3: Cross multiply
    79.62x = 109.83 × 50.53
  4. Step 4: Simplify right side
    79.62x = 5,549.71
  5. Step 5: Solve for x
    x = 5,549.71/79.62
  6. Step 6: Final answer
    x = 69.70

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.