Home / 80,530.04-120,811.66-30,600.84

Finding the Fourth Proportional to 80,530.04, 120,811.66 and 30,600.84

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Solution

The fourth proportional to 80,530.04, 120,811.66 and 30,600.84 is: 45,907.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,530.04 : 120,811.66 = 30,600.84 : x
  2. Step 2: Convert to fraction form
    80,530.04/120,811.66 = 30,600.84/x
  3. Step 3: Cross multiply
    80,530.04x = 120,811.66 × 30,600.84
  4. Step 4: Simplify right side
    80,530.04x = 3,696,938,277.79
  5. Step 5: Solve for x
    x = 3,696,938,277.79/80,530.04
  6. Step 6: Final answer
    x = 45,907.57

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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.