Home / 67.70-93.41-38.57

Finding the Fourth Proportional to 67.70, 93.41 and 38.57

Calculator

Solution

The fourth proportional to 67.70, 93.41 and 38.57 is: 53.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.70 : 93.41 = 38.57 : x
  2. Step 2: Convert to fraction form
    67.70/93.41 = 38.57/x
  3. Step 3: Cross multiply
    67.70x = 93.41 × 38.57
  4. Step 4: Simplify right side
    67.70x = 3,602.36
  5. Step 5: Solve for x
    x = 3,602.36/67.70
  6. Step 6: Final answer
    x = 53.21

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.