Home / 80,553.39-120,850.60-56,907.15

Finding the Fourth Proportional to 80,553.39, 120,850.60 and 56,907.15

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Solution

The fourth proportional to 80,553.39, 120,850.60 and 56,907.15 is: 85,375.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,553.39 : 120,850.60 = 56,907.15 : x
  2. Step 2: Convert to fraction form
    80,553.39/120,850.60 = 56,907.15/x
  3. Step 3: Cross multiply
    80,553.39x = 120,850.60 × 56,907.15
  4. Step 4: Simplify right side
    80,553.39x = 6,877,263,221.79
  5. Step 5: Solve for x
    x = 6,877,263,221.79/80,553.39
  6. Step 6: Final answer
    x = 85,375.22

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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.