Home / 75,481.28-113,221.76-20,077.28

Finding the Fourth Proportional to 75,481.28, 113,221.76 and 20,077.28

Calculator

Solution

The fourth proportional to 75,481.28, 113,221.76 and 20,077.28 is: 30,115.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,481.28 : 113,221.76 = 20,077.28 : x
  2. Step 2: Convert to fraction form
    75,481.28/113,221.76 = 20,077.28/x
  3. Step 3: Cross multiply
    75,481.28x = 113,221.76 × 20,077.28
  4. Step 4: Simplify right side
    75,481.28x = 2,273,184,977.61
  5. Step 5: Solve for x
    x = 2,273,184,977.61/75,481.28
  6. Step 6: Final answer
    x = 30,115.88

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.