Home / 61.03-84.07-57.61

Finding the Fourth Proportional to 61.03, 84.07 and 57.61

Calculator

Solution

The fourth proportional to 61.03, 84.07 and 57.61 is: 79.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.03 : 84.07 = 57.61 : x
  2. Step 2: Convert to fraction form
    61.03/84.07 = 57.61/x
  3. Step 3: Cross multiply
    61.03x = 84.07 × 57.61
  4. Step 4: Simplify right side
    61.03x = 4,843.27
  5. Step 5: Solve for x
    x = 4,843.27/61.03
  6. Step 6: Final answer
    x = 79.36

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.