Home / 108.27-162.47-47.45

Finding the Fourth Proportional to 108.27, 162.47 and 47.45

Calculator

Solution

The fourth proportional to 108.27, 162.47 and 47.45 is: 71.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.27 : 162.47 = 47.45 : x
  2. Step 2: Convert to fraction form
    108.27/162.47 = 47.45/x
  3. Step 3: Cross multiply
    108.27x = 162.47 × 47.45
  4. Step 4: Simplify right side
    108.27x = 7,709.73
  5. Step 5: Solve for x
    x = 7,709.73/108.27
  6. Step 6: Final answer
    x = 71.21

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.