Home / 51,723.28-71,371.38-30,494.80

Finding the Fourth Proportional to 51,723.28, 71,371.38 and 30,494.80

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Solution

The fourth proportional to 51,723.28, 71,371.38 and 30,494.80 is: 42,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,723.28 : 71,371.38 = 30,494.80 : x
  2. Step 2: Convert to fraction form
    51,723.28/71,371.38 = 30,494.80/x
  3. Step 3: Cross multiply
    51,723.28x = 71,371.38 × 30,494.80
  4. Step 4: Simplify right side
    51,723.28x = 2,176,455,958.82
  5. Step 5: Solve for x
    x = 2,176,455,958.82/51,723.28
  6. Step 6: Final answer
    x = 42,078.85

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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.