Home / 77,764.05-107,286.32-50,921.87

Finding the Fourth Proportional to 77,764.05, 107,286.32 and 50,921.87

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Solution

The fourth proportional to 77,764.05, 107,286.32 and 50,921.87 is: 70,253.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,764.05 : 107,286.32 = 50,921.87 : x
  2. Step 2: Convert to fraction form
    77,764.05/107,286.32 = 50,921.87/x
  3. Step 3: Cross multiply
    77,764.05x = 107,286.32 × 50,921.87
  4. Step 4: Simplify right side
    77,764.05x = 5,463,219,630.69
  5. Step 5: Solve for x
    x = 5,463,219,630.69/77,764.05
  6. Step 6: Final answer
    x = 70,253.80

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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.