Home / 66.30-99.51-32.11

Finding the Fourth Proportional to 66.30, 99.51 and 32.11

Calculator

Solution

The fourth proportional to 66.30, 99.51 and 32.11 is: 48.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66.30 : 99.51 = 32.11 : x
  2. Step 2: Convert to fraction form
    66.30/99.51 = 32.11/x
  3. Step 3: Cross multiply
    66.30x = 99.51 × 32.11
  4. Step 4: Simplify right side
    66.30x = 3,195.64
  5. Step 5: Solve for x
    x = 3,195.64/66.30
  6. Step 6: Final answer
    x = 48.20

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.