Home / 80,520.34-120,716.96-50,875.70

Finding the Fourth Proportional to 80,520.34, 120,716.96 and 50,875.70

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Solution

The fourth proportional to 80,520.34, 120,716.96 and 50,875.70 is: 76,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,520.34 : 120,716.96 = 50,875.70 : x
  2. Step 2: Convert to fraction form
    80,520.34/120,716.96 = 50,875.70/x
  3. Step 3: Cross multiply
    80,520.34x = 120,716.96 × 50,875.70
  4. Step 4: Simplify right side
    80,520.34x = 6,141,559,841.87
  5. Step 5: Solve for x
    x = 6,141,559,841.87/80,520.34
  6. Step 6: Final answer
    x = 76,273.40

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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.