Home / 49,785.20-68,713.64-28,578.96

Finding the Fourth Proportional to 49,785.20, 68,713.64 and 28,578.96

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Solution

The fourth proportional to 49,785.20, 68,713.64 and 28,578.96 is: 39,444.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,785.20 : 68,713.64 = 28,578.96 : x
  2. Step 2: Convert to fraction form
    49,785.20/68,713.64 = 28,578.96/x
  3. Step 3: Cross multiply
    49,785.20x = 68,713.64 × 28,578.96
  4. Step 4: Simplify right side
    49,785.20x = 1,963,764,369.01
  5. Step 5: Solve for x
    x = 1,963,764,369.01/49,785.20
  6. Step 6: Final answer
    x = 39,444.74

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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.