Home / 72,046.46-108,107.76-51,121.74

Finding the Fourth Proportional to 72,046.46, 108,107.76 and 51,121.74

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Solution

The fourth proportional to 72,046.46, 108,107.76 and 51,121.74 is: 76,709.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,046.46 : 108,107.76 = 51,121.74 : x
  2. Step 2: Convert to fraction form
    72,046.46/108,107.76 = 51,121.74/x
  3. Step 3: Cross multiply
    72,046.46x = 108,107.76 × 51,121.74
  4. Step 4: Simplify right side
    72,046.46x = 5,526,656,798.70
  5. Step 5: Solve for x
    x = 5,526,656,798.70/72,046.46
  6. Step 6: Final answer
    x = 76,709.62

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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.