Home / 76,819.20-106,092-62,516.16

Finding the Fourth Proportional to 76,819.20, 106,092 and 62,516.16

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Solution

The fourth proportional to 76,819.20, 106,092 and 62,516.16 is: 86,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,819.20 : 106,092 = 62,516.16 : x
  2. Step 2: Convert to fraction form
    76,819.20/106,092 = 62,516.16/x
  3. Step 3: Cross multiply
    76,819.20x = 106,092 × 62,516.16
  4. Step 4: Simplify right side
    76,819.20x = 6,632,464,446.72
  5. Step 5: Solve for x
    x = 6,632,464,446.72/76,819.20
  6. Step 6: Final answer
    x = 86,338.63

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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.