Home / 67,242.15-100,839.69-19,844.66

Finding the Fourth Proportional to 67,242.15, 100,839.69 and 19,844.66

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Solution

The fourth proportional to 67,242.15, 100,839.69 and 19,844.66 is: 29,760.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,242.15 : 100,839.69 = 19,844.66 : x
  2. Step 2: Convert to fraction form
    67,242.15/100,839.69 = 19,844.66/x
  3. Step 3: Cross multiply
    67,242.15x = 100,839.69 × 19,844.66
  4. Step 4: Simplify right side
    67,242.15x = 2,001,129,614.65
  5. Step 5: Solve for x
    x = 2,001,129,614.65/67,242.15
  6. Step 6: Final answer
    x = 29,760.05

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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.