Home / 71,968.83-99,317.16-40,139.79

Finding the Fourth Proportional to 71,968.83, 99,317.16 and 40,139.79

Calculator

Solution

The fourth proportional to 71,968.83, 99,317.16 and 40,139.79 is: 55,393.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,968.83 : 99,317.16 = 40,139.79 : x
  2. Step 2: Convert to fraction form
    71,968.83/99,317.16 = 40,139.79/x
  3. Step 3: Cross multiply
    71,968.83x = 99,317.16 × 40,139.79
  4. Step 4: Simplify right side
    71,968.83x = 3,986,569,945.80
  5. Step 5: Solve for x
    x = 3,986,569,945.80/71,968.83
  6. Step 6: Final answer
    x = 55,393.01

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.