Home / 77,765.05-107,287.70-50,922.87

Finding the Fourth Proportional to 77,765.05, 107,287.70 and 50,922.87

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Solution

The fourth proportional to 77,765.05, 107,287.70 and 50,922.87 is: 70,255.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,765.05 : 107,287.70 = 50,922.87 : x
  2. Step 2: Convert to fraction form
    77,765.05/107,287.70 = 50,922.87/x
  3. Step 3: Cross multiply
    77,765.05x = 107,287.70 × 50,922.87
  4. Step 4: Simplify right side
    77,765.05x = 5,463,397,599.70
  5. Step 5: Solve for x
    x = 5,463,397,599.70/77,765.05
  6. Step 6: Final answer
    x = 70,255.18

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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.