Home / 71,375.27-107,054.63-18,788.86

Finding the Fourth Proportional to 71,375.27, 107,054.63 and 18,788.86

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Solution

The fourth proportional to 71,375.27, 107,054.63 and 18,788.86 is: 28,181.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,375.27 : 107,054.63 = 18,788.86 : x
  2. Step 2: Convert to fraction form
    71,375.27/107,054.63 = 18,788.86/x
  3. Step 3: Cross multiply
    71,375.27x = 107,054.63 × 18,788.86
  4. Step 4: Simplify right side
    71,375.27x = 2,011,434,093.84
  5. Step 5: Solve for x
    x = 2,011,434,093.84/71,375.27
  6. Step 6: Final answer
    x = 28,181.11

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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.