Home / 85,401.60-128,124.80-32,812.80

Finding the Fourth Proportional to 85,401.60, 128,124.80 and 32,812.80

Calculator

Solution

The fourth proportional to 85,401.60, 128,124.80 and 32,812.80 is: 49,227.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,401.60 : 128,124.80 = 32,812.80 : x
  2. Step 2: Convert to fraction form
    85,401.60/128,124.80 = 32,812.80/x
  3. Step 3: Cross multiply
    85,401.60x = 128,124.80 × 32,812.80
  4. Step 4: Simplify right side
    85,401.60x = 4,204,133,437.44
  5. Step 5: Solve for x
    x = 4,204,133,437.44/85,401.60
  6. Step 6: Final answer
    x = 49,227.81

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.