Home / 57,731.20-86,515.80-45,905.20

Finding the Fourth Proportional to 57,731.20, 86,515.80 and 45,905.20

Calculator

Solution

The fourth proportional to 57,731.20, 86,515.80 and 45,905.20 is: 68,793.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,731.20 : 86,515.80 = 45,905.20 : x
  2. Step 2: Convert to fraction form
    57,731.20/86,515.80 = 45,905.20/x
  3. Step 3: Cross multiply
    57,731.20x = 86,515.80 × 45,905.20
  4. Step 4: Simplify right side
    57,731.20x = 3,971,525,102.16
  5. Step 5: Solve for x
    x = 3,971,525,102.16/57,731.20
  6. Step 6: Final answer
    x = 68,793.39

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.