Home / 51,977.92-77,975.29-20,370.84

Finding the Fourth Proportional to 51,977.92, 77,975.29 and 20,370.84

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Solution

The fourth proportional to 51,977.92, 77,975.29 and 20,370.84 is: 30,559.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,977.92 : 77,975.29 = 20,370.84 : x
  2. Step 2: Convert to fraction form
    51,977.92/77,975.29 = 20,370.84/x
  3. Step 3: Cross multiply
    51,977.92x = 77,975.29 × 20,370.84
  4. Step 4: Simplify right side
    51,977.92x = 1,588,422,105.62
  5. Step 5: Solve for x
    x = 1,588,422,105.62/51,977.92
  6. Step 6: Final answer
    x = 30,559.56

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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.