Home / 49,946.20-74,910.66-18,781.72

Finding the Fourth Proportional to 49,946.20, 74,910.66 and 18,781.72

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Solution

The fourth proportional to 49,946.20, 74,910.66 and 18,781.72 is: 28,169.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,946.20 : 74,910.66 = 18,781.72 : x
  2. Step 2: Convert to fraction form
    49,946.20/74,910.66 = 18,781.72/x
  3. Step 3: Cross multiply
    49,946.20x = 74,910.66 × 18,781.72
  4. Step 4: Simplify right side
    49,946.20x = 1,406,951,041.14
  5. Step 5: Solve for x
    x = 1,406,951,041.14/49,946.20
  6. Step 6: Final answer
    x = 28,169.33

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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.