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Finding the Fourth Proportional to 49,898.69, 74,847.82 and 20,309.51

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Solution

The fourth proportional to 49,898.69, 74,847.82 and 20,309.51 is: 30,464.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,898.69 : 74,847.82 = 20,309.51 : x
  2. Step 2: Convert to fraction form
    49,898.69/74,847.82 = 20,309.51/x
  3. Step 3: Cross multiply
    49,898.69x = 74,847.82 × 20,309.51
  4. Step 4: Simplify right side
    49,898.69x = 1,520,122,548.77
  5. Step 5: Solve for x
    x = 1,520,122,548.77/49,898.69
  6. Step 6: Final answer
    x = 30,464.18

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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.