Home / 45,819.80-68,739.51-14,229.20

Finding the Fourth Proportional to 45,819.80, 68,739.51 and 14,229.20

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Solution

The fourth proportional to 45,819.80, 68,739.51 and 14,229.20 is: 21,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,819.80 : 68,739.51 = 14,229.20 : x
  2. Step 2: Convert to fraction form
    45,819.80/68,739.51 = 14,229.20/x
  3. Step 3: Cross multiply
    45,819.80x = 68,739.51 × 14,229.20
  4. Step 4: Simplify right side
    45,819.80x = 978,108,235.69
  5. Step 5: Solve for x
    x = 978,108,235.69/45,819.80
  6. Step 6: Final answer
    x = 21,346.85

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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.