Home / 81,753.43-112,819.15-45,942.67

Finding the Fourth Proportional to 81,753.43, 112,819.15 and 45,942.67

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Solution

The fourth proportional to 81,753.43, 112,819.15 and 45,942.67 is: 63,400.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,753.43 : 112,819.15 = 45,942.67 : x
  2. Step 2: Convert to fraction form
    81,753.43/112,819.15 = 45,942.67/x
  3. Step 3: Cross multiply
    81,753.43x = 112,819.15 × 45,942.67
  4. Step 4: Simplify right side
    81,753.43x = 5,183,212,978.13
  5. Step 5: Solve for x
    x = 5,183,212,978.13/81,753.43
  6. Step 6: Final answer
    x = 63,400.56

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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.