Home / 71,667.20-107,384.32-43,906.56

Finding the Fourth Proportional to 71,667.20, 107,384.32 and 43,906.56

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Solution

The fourth proportional to 71,667.20, 107,384.32 and 43,906.56 is: 65,788.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,667.20 : 107,384.32 = 43,906.56 : x
  2. Step 2: Convert to fraction form
    71,667.20/107,384.32 = 43,906.56/x
  3. Step 3: Cross multiply
    71,667.20x = 107,384.32 × 43,906.56
  4. Step 4: Simplify right side
    71,667.20x = 4,714,876,089.14
  5. Step 5: Solve for x
    x = 4,714,876,089.14/71,667.20
  6. Step 6: Final answer
    x = 65,788.48

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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.