Home / 49,945.32-74,928.92-18,780.57

Finding the Fourth Proportional to 49,945.32, 74,928.92 and 18,780.57

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Solution

The fourth proportional to 49,945.32, 74,928.92 and 18,780.57 is: 28,174.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,945.32 : 74,928.92 = 18,780.57 : x
  2. Step 2: Convert to fraction form
    49,945.32/74,928.92 = 18,780.57/x
  3. Step 3: Cross multiply
    49,945.32x = 74,928.92 × 18,780.57
  4. Step 4: Simplify right side
    49,945.32x = 1,407,207,358.54
  5. Step 5: Solve for x
    x = 1,407,207,358.54/49,945.32
  6. Step 6: Final answer
    x = 28,174.96

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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.