Home / 80,718.60-121,034.70-33,918.60

Finding the Fourth Proportional to 80,718.60, 121,034.70 and 33,918.60

Calculator

Solution

The fourth proportional to 80,718.60, 121,034.70 and 33,918.60 is: 50,859.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,718.60 : 121,034.70 = 33,918.60 : x
  2. Step 2: Convert to fraction form
    80,718.60/121,034.70 = 33,918.60/x
  3. Step 3: Cross multiply
    80,718.60x = 121,034.70 × 33,918.60
  4. Step 4: Simplify right side
    80,718.60x = 4,105,327,575.42
  5. Step 5: Solve for x
    x = 4,105,327,575.42/80,718.60
  6. Step 6: Final answer
    x = 50,859.75

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.