Home / 85.71-118.27-46.89

Finding the Fourth Proportional to 85.71, 118.27 and 46.89

Calculator

Solution

The fourth proportional to 85.71, 118.27 and 46.89 is: 64.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85.71 : 118.27 = 46.89 : x
  2. Step 2: Convert to fraction form
    85.71/118.27 = 46.89/x
  3. Step 3: Cross multiply
    85.71x = 118.27 × 46.89
  4. Step 4: Simplify right side
    85.71x = 5,546.13
  5. Step 5: Solve for x
    x = 5,546.13/85.71
  6. Step 6: Final answer
    x = 64.71

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.