Home / 80,541.33-120,811.21-48,960.12

Finding the Fourth Proportional to 80,541.33, 120,811.21 and 48,960.12

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Solution

The fourth proportional to 80,541.33, 120,811.21 and 48,960.12 is: 73,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,541.33 : 120,811.21 = 48,960.12 : x
  2. Step 2: Convert to fraction form
    80,541.33/120,811.21 = 48,960.12/x
  3. Step 3: Cross multiply
    80,541.33x = 120,811.21 × 48,960.12
  4. Step 4: Simplify right side
    80,541.33x = 5,914,931,338.95
  5. Step 5: Solve for x
    x = 5,914,931,338.95/80,541.33
  6. Step 6: Final answer
    x = 73,439.70

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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.