Home / 79,864.24-119,796.24-20,699.96

Finding the Fourth Proportional to 79,864.24, 119,796.24 and 20,699.96

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Solution

The fourth proportional to 79,864.24, 119,796.24 and 20,699.96 is: 31,049.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,864.24 : 119,796.24 = 20,699.96 : x
  2. Step 2: Convert to fraction form
    79,864.24/119,796.24 = 20,699.96/x
  3. Step 3: Cross multiply
    79,864.24x = 119,796.24 × 20,699.96
  4. Step 4: Simplify right side
    79,864.24x = 2,479,777,272.65
  5. Step 5: Solve for x
    x = 2,479,777,272.65/79,864.24
  6. Step 6: Final answer
    x = 31,049.91

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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.