Home / 80,516.90-120,711.84-50,872.25

Finding the Fourth Proportional to 80,516.90, 120,711.84 and 50,872.25

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Solution

The fourth proportional to 80,516.90, 120,711.84 and 50,872.25 is: 76,268.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,516.90 : 120,711.84 = 50,872.25 : x
  2. Step 2: Convert to fraction form
    80,516.90/120,711.84 = 50,872.25/x
  3. Step 3: Cross multiply
    80,516.90x = 120,711.84 × 50,872.25
  4. Step 4: Simplify right side
    80,516.90x = 6,140,883,013.45
  5. Step 5: Solve for x
    x = 6,140,883,013.45/80,516.90
  6. Step 6: Final answer
    x = 76,268.25

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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.