Home / 71,986.34-107,895.44-54,159.73

Finding the Fourth Proportional to 71,986.34, 107,895.44 and 54,159.73

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Solution

The fourth proportional to 71,986.34, 107,895.44 and 54,159.73 is: 81,176.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,986.34 : 107,895.44 = 54,159.73 : x
  2. Step 2: Convert to fraction form
    71,986.34/107,895.44 = 54,159.73/x
  3. Step 3: Cross multiply
    71,986.34x = 107,895.44 × 54,159.73
  4. Step 4: Simplify right side
    71,986.34x = 5,843,587,358.09
  5. Step 5: Solve for x
    x = 5,843,587,358.09/71,986.34
  6. Step 6: Final answer
    x = 81,176.34

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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.