Home / 63.28-87.33-34.17

Finding the Fourth Proportional to 63.28, 87.33 and 34.17

Calculator

Solution

The fourth proportional to 63.28, 87.33 and 34.17 is: 47.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.28 : 87.33 = 34.17 : x
  2. Step 2: Convert to fraction form
    63.28/87.33 = 34.17/x
  3. Step 3: Cross multiply
    63.28x = 87.33 × 34.17
  4. Step 4: Simplify right side
    63.28x = 2,984.17
  5. Step 5: Solve for x
    x = 2,984.17/63.28
  6. Step 6: Final answer
    x = 47.16

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.