Home / 51,777.94-77,682.03-20,617.78

Finding the Fourth Proportional to 51,777.94, 77,682.03 and 20,617.78

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Solution

The fourth proportional to 51,777.94, 77,682.03 and 20,617.78 is: 30,932.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,777.94 : 77,682.03 = 20,617.78 : x
  2. Step 2: Convert to fraction form
    51,777.94/77,682.03 = 20,617.78/x
  3. Step 3: Cross multiply
    51,777.94x = 77,682.03 × 20,617.78
  4. Step 4: Simplify right side
    51,777.94x = 1,601,631,004.49
  5. Step 5: Solve for x
    x = 1,601,631,004.49/51,777.94
  6. Step 6: Final answer
    x = 30,932.69

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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.