Home / 51,451.22-77,179.86-19,861.49

Finding the Fourth Proportional to 51,451.22, 77,179.86 and 19,861.49

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Solution

The fourth proportional to 51,451.22, 77,179.86 and 19,861.49 is: 29,793.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,451.22 : 77,179.86 = 19,861.49 : x
  2. Step 2: Convert to fraction form
    51,451.22/77,179.86 = 19,861.49/x
  3. Step 3: Cross multiply
    51,451.22x = 77,179.86 × 19,861.49
  4. Step 4: Simplify right side
    51,451.22x = 1,532,906,631.69
  5. Step 5: Solve for x
    x = 1,532,906,631.69/51,451.22
  6. Step 6: Final answer
    x = 29,793.40

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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.