Home / 68.55-102.84-34.35

Finding the Fourth Proportional to 68.55, 102.84 and 34.35

Calculator

Solution

The fourth proportional to 68.55, 102.84 and 34.35 is: 51.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.55 : 102.84 = 34.35 : x
  2. Step 2: Convert to fraction form
    68.55/102.84 = 34.35/x
  3. Step 3: Cross multiply
    68.55x = 102.84 × 34.35
  4. Step 4: Simplify right side
    68.55x = 3,532.55
  5. Step 5: Solve for x
    x = 3,532.55/68.55
  6. Step 6: Final answer
    x = 51.53

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.