Home / 90,979.29-125,558.64-50,150.68

Finding the Fourth Proportional to 90,979.29, 125,558.64 and 50,150.68

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Solution

The fourth proportional to 90,979.29, 125,558.64 and 50,150.68 is: 69,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,979.29 : 125,558.64 = 50,150.68 : x
  2. Step 2: Convert to fraction form
    90,979.29/125,558.64 = 50,150.68/x
  3. Step 3: Cross multiply
    90,979.29x = 125,558.64 × 50,150.68
  4. Step 4: Simplify right side
    90,979.29x = 6,296,850,861.98
  5. Step 5: Solve for x
    x = 6,296,850,861.98/90,979.29
  6. Step 6: Final answer
    x = 69,211.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.