Home / 77,755.21-107,204.10-50,855.11

Finding the Fourth Proportional to 77,755.21, 107,204.10 and 50,855.11

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Solution

The fourth proportional to 77,755.21, 107,204.10 and 50,855.11 is: 70,115.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,755.21 : 107,204.10 = 50,855.11 : x
  2. Step 2: Convert to fraction form
    77,755.21/107,204.10 = 50,855.11/x
  3. Step 3: Cross multiply
    77,755.21x = 107,204.10 × 50,855.11
  4. Step 4: Simplify right side
    77,755.21x = 5,451,876,297.95
  5. Step 5: Solve for x
    x = 5,451,876,297.95/77,755.21
  6. Step 6: Final answer
    x = 70,115.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.