Home / 75,871.22-113,819.19-28,489.98

Finding the Fourth Proportional to 75,871.22, 113,819.19 and 28,489.98

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Solution

The fourth proportional to 75,871.22, 113,819.19 and 28,489.98 is: 42,739.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,871.22 : 113,819.19 = 28,489.98 : x
  2. Step 2: Convert to fraction form
    75,871.22/113,819.19 = 28,489.98/x
  3. Step 3: Cross multiply
    75,871.22x = 113,819.19 × 28,489.98
  4. Step 4: Simplify right side
    75,871.22x = 3,242,706,446.72
  5. Step 5: Solve for x
    x = 3,242,706,446.72/75,871.22
  6. Step 6: Final answer
    x = 42,739.61

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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.