Home / 71,458.09-107,188.35-27,105.73

Finding the Fourth Proportional to 71,458.09, 107,188.35 and 27,105.73

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Solution

The fourth proportional to 71,458.09, 107,188.35 and 27,105.73 is: 40,659.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,458.09 : 107,188.35 = 27,105.73 : x
  2. Step 2: Convert to fraction form
    71,458.09/107,188.35 = 27,105.73/x
  3. Step 3: Cross multiply
    71,458.09x = 107,188.35 × 27,105.73
  4. Step 4: Simplify right side
    71,458.09x = 2,905,418,474.25
  5. Step 5: Solve for x
    x = 2,905,418,474.25/71,458.09
  6. Step 6: Final answer
    x = 40,659.06

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1.5x scale

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.