Home / 56.53-84.78-18.01

Finding the Fourth Proportional to 56.53, 84.78 and 18.01

Calculator

Solution

The fourth proportional to 56.53, 84.78 and 18.01 is: 27.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    56.53 : 84.78 = 18.01 : x
  2. Step 2: Convert to fraction form
    56.53/84.78 = 18.01/x
  3. Step 3: Cross multiply
    56.53x = 84.78 × 18.01
  4. Step 4: Simplify right side
    56.53x = 1,526.52
  5. Step 5: Solve for x
    x = 1,526.52/56.53
  6. Step 6: Final answer
    x = 27.00

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.