Home / 69.89-104.70-35.57

Finding the Fourth Proportional to 69.89, 104.70 and 35.57

Calculator

Solution

The fourth proportional to 69.89, 104.70 and 35.57 is: 53.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69.89 : 104.70 = 35.57 : x
  2. Step 2: Convert to fraction form
    69.89/104.70 = 35.57/x
  3. Step 3: Cross multiply
    69.89x = 104.70 × 35.57
  4. Step 4: Simplify right side
    69.89x = 3,724.18
  5. Step 5: Solve for x
    x = 3,724.18/69.89
  6. Step 6: Final answer
    x = 53.29

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.