Home / 77.64-107.07-59.22

Finding the Fourth Proportional to 77.64, 107.07 and 59.22

Calculator

Solution

The fourth proportional to 77.64, 107.07 and 59.22 is: 81.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77.64 : 107.07 = 59.22 : x
  2. Step 2: Convert to fraction form
    77.64/107.07 = 59.22/x
  3. Step 3: Cross multiply
    77.64x = 107.07 × 59.22
  4. Step 4: Simplify right side
    77.64x = 6,340.69
  5. Step 5: Solve for x
    x = 6,340.69/77.64
  6. Step 6: Final answer
    x = 81.67

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.