Home / 80,930.34-121,406.58-76,009.59

Finding the Fourth Proportional to 80,930.34, 121,406.58 and 76,009.59

Calculator

Solution

The fourth proportional to 80,930.34, 121,406.58 and 76,009.59 is: 114,024.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,930.34 : 121,406.58 = 76,009.59 : x
  2. Step 2: Convert to fraction form
    80,930.34/121,406.58 = 76,009.59/x
  3. Step 3: Cross multiply
    80,930.34x = 121,406.58 × 76,009.59
  4. Step 4: Simplify right side
    80,930.34x = 9,228,064,369.10
  5. Step 5: Solve for x
    x = 9,228,064,369.10/80,930.34
  6. Step 6: Final answer
    x = 114,024.78

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.