Home / 74,919.92-112,379.08-43,309.86

Finding the Fourth Proportional to 74,919.92, 112,379.08 and 43,309.86

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Solution

The fourth proportional to 74,919.92, 112,379.08 and 43,309.86 is: 64,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,919.92 : 112,379.08 = 43,309.86 : x
  2. Step 2: Convert to fraction form
    74,919.92/112,379.08 = 43,309.86/x
  3. Step 3: Cross multiply
    74,919.92x = 112,379.08 × 43,309.86
  4. Step 4: Simplify right side
    74,919.92x = 4,867,122,221.73
  5. Step 5: Solve for x
    x = 4,867,122,221.73/74,919.92
  6. Step 6: Final answer
    x = 64,964.33

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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.