Home / 71.84-107.61-61.82

Finding the Fourth Proportional to 71.84, 107.61 and 61.82

Calculator

Solution

The fourth proportional to 71.84, 107.61 and 61.82 is: 92.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71.84 : 107.61 = 61.82 : x
  2. Step 2: Convert to fraction form
    71.84/107.61 = 61.82/x
  3. Step 3: Cross multiply
    71.84x = 107.61 × 61.82
  4. Step 4: Simplify right side
    71.84x = 6,652.45
  5. Step 5: Solve for x
    x = 6,652.45/71.84
  6. Step 6: Final answer
    x = 92.60

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.