Home / 81,983.16-122,819.22-48,632.76

Finding the Fourth Proportional to 81,983.16, 122,819.22 and 48,632.76

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Solution

The fourth proportional to 81,983.16, 122,819.22 and 48,632.76 is: 72,856.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,983.16 : 122,819.22 = 48,632.76 : x
  2. Step 2: Convert to fraction form
    81,983.16/122,819.22 = 48,632.76/x
  3. Step 3: Cross multiply
    81,983.16x = 122,819.22 × 48,632.76
  4. Step 4: Simplify right side
    81,983.16x = 5,973,037,649.65
  5. Step 5: Solve for x
    x = 5,973,037,649.65/81,983.16
  6. Step 6: Final answer
    x = 72,856.88

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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.