Home / 47,990.39-71,929.54-36,105.99

Finding the Fourth Proportional to 47,990.39, 71,929.54 and 36,105.99

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Solution

The fourth proportional to 47,990.39, 71,929.54 and 36,105.99 is: 54,116.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,990.39 : 71,929.54 = 36,105.99 : x
  2. Step 2: Convert to fraction form
    47,990.39/71,929.54 = 36,105.99/x
  3. Step 3: Cross multiply
    47,990.39x = 71,929.54 × 36,105.99
  4. Step 4: Simplify right side
    47,990.39x = 2,597,086,976.57
  5. Step 5: Solve for x
    x = 2,597,086,976.57/47,990.39
  6. Step 6: Final answer
    x = 54,116.81

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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.