Home / 49,930.28-68,903.76-28,716.40

Finding the Fourth Proportional to 49,930.28, 68,903.76 and 28,716.40

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Solution

The fourth proportional to 49,930.28, 68,903.76 and 28,716.40 is: 39,628.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,930.28 : 68,903.76 = 28,716.40 : x
  2. Step 2: Convert to fraction form
    49,930.28/68,903.76 = 28,716.40/x
  3. Step 3: Cross multiply
    49,930.28x = 68,903.76 × 28,716.40
  4. Step 4: Simplify right side
    49,930.28x = 1,978,667,933.66
  5. Step 5: Solve for x
    x = 1,978,667,933.66/49,930.28
  6. Step 6: Final answer
    x = 39,628.62

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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.