Home / 55.68-76.78-41.12

Finding the Fourth Proportional to 55.68, 76.78 and 41.12

Calculator

Solution

The fourth proportional to 55.68, 76.78 and 41.12 is: 56.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.68 : 76.78 = 41.12 : x
  2. Step 2: Convert to fraction form
    55.68/76.78 = 41.12/x
  3. Step 3: Cross multiply
    55.68x = 76.78 × 41.12
  4. Step 4: Simplify right side
    55.68x = 3,157.19
  5. Step 5: Solve for x
    x = 3,157.19/55.68
  6. Step 6: Final answer
    x = 56.70

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.