Home / 49,903.60-74,790.40-20,286.88

Finding the Fourth Proportional to 49,903.60, 74,790.40 and 20,286.88

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Solution

The fourth proportional to 49,903.60, 74,790.40 and 20,286.88 is: 30,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,903.60 : 74,790.40 = 20,286.88 : x
  2. Step 2: Convert to fraction form
    49,903.60/74,790.40 = 20,286.88/x
  3. Step 3: Cross multiply
    49,903.60x = 74,790.40 × 20,286.88
  4. Step 4: Simplify right side
    49,903.60x = 1,517,263,869.95
  5. Step 5: Solve for x
    x = 1,517,263,869.95/49,903.60
  6. Step 6: Final answer
    x = 30,403.90

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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.