Home / 72,770.74-100,416.51-40,938.95

Finding the Fourth Proportional to 72,770.74, 100,416.51 and 40,938.95

Calculator

Solution

The fourth proportional to 72,770.74, 100,416.51 and 40,938.95 is: 56,491.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,770.74 : 100,416.51 = 40,938.95 : x
  2. Step 2: Convert to fraction form
    72,770.74/100,416.51 = 40,938.95/x
  3. Step 3: Cross multiply
    72,770.74x = 100,416.51 × 40,938.95
  4. Step 4: Simplify right side
    72,770.74x = 4,110,946,733.11
  5. Step 5: Solve for x
    x = 4,110,946,733.11/72,770.74
  6. Step 6: Final answer
    x = 56,491.76

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.