Home / 80,211.11-120,434.93-44,741.72

Finding the Fourth Proportional to 80,211.11, 120,434.93 and 44,741.72

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Solution

The fourth proportional to 80,211.11, 120,434.93 and 44,741.72 is: 67,178.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,211.11 : 120,434.93 = 44,741.72 : x
  2. Step 2: Convert to fraction form
    80,211.11/120,434.93 = 44,741.72/x
  3. Step 3: Cross multiply
    80,211.11x = 120,434.93 × 44,741.72
  4. Step 4: Simplify right side
    80,211.11x = 5,388,466,329.22
  5. Step 5: Solve for x
    x = 5,388,466,329.22/80,211.11
  6. Step 6: Final answer
    x = 67,178.56

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1.5x scale

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.