Home / 49,991.76-69,003.99-28,785.15

Finding the Fourth Proportional to 49,991.76, 69,003.99 and 28,785.15

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Solution

The fourth proportional to 49,991.76, 69,003.99 and 28,785.15 is: 39,732.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,991.76 : 69,003.99 = 28,785.15 : x
  2. Step 2: Convert to fraction form
    49,991.76/69,003.99 = 28,785.15/x
  3. Step 3: Cross multiply
    49,991.76x = 69,003.99 × 28,785.15
  4. Step 4: Simplify right side
    49,991.76x = 1,986,290,202.75
  5. Step 5: Solve for x
    x = 1,986,290,202.75/49,991.76
  6. Step 6: Final answer
    x = 39,732.35

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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.