Home / 74,936.68-112,409.32-28,189.96

Finding the Fourth Proportional to 74,936.68, 112,409.32 and 28,189.96

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Solution

The fourth proportional to 74,936.68, 112,409.32 and 28,189.96 is: 42,286.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,936.68 : 112,409.32 = 28,189.96 : x
  2. Step 2: Convert to fraction form
    74,936.68/112,409.32 = 28,189.96/x
  3. Step 3: Cross multiply
    74,936.68x = 112,409.32 × 28,189.96
  4. Step 4: Simplify right side
    74,936.68x = 3,168,814,234.43
  5. Step 5: Solve for x
    x = 3,168,814,234.43/74,936.68
  6. Step 6: Final answer
    x = 42,286.56

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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.