Home / 76,183.18-105,150.28-50,690.61

Finding the Fourth Proportional to 76,183.18, 105,150.28 and 50,690.61

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Solution

The fourth proportional to 76,183.18, 105,150.28 and 50,690.61 is: 69,964.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,183.18 : 105,150.28 = 50,690.61 : x
  2. Step 2: Convert to fraction form
    76,183.18/105,150.28 = 50,690.61/x
  3. Step 3: Cross multiply
    76,183.18x = 105,150.28 × 50,690.61
  4. Step 4: Simplify right side
    76,183.18x = 5,330,132,292.55
  5. Step 5: Solve for x
    x = 5,330,132,292.55/76,183.18
  6. Step 6: Final answer
    x = 69,964.69

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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.