Home / 71,961.08-107,801.31-43,811.31

Finding the Fourth Proportional to 71,961.08, 107,801.31 and 43,811.31

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Solution

The fourth proportional to 71,961.08, 107,801.31 and 43,811.31 is: 65,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,961.08 : 107,801.31 = 43,811.31 : x
  2. Step 2: Convert to fraction form
    71,961.08/107,801.31 = 43,811.31/x
  3. Step 3: Cross multiply
    71,961.08x = 107,801.31 × 43,811.31
  4. Step 4: Simplify right side
    71,961.08x = 4,722,917,179.36
  5. Step 5: Solve for x
    x = 4,722,917,179.36/71,961.08
  6. Step 6: Final answer
    x = 65,631.55

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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.