Home / 67,239.91-100,836.33-19,842.42

Finding the Fourth Proportional to 67,239.91, 100,836.33 and 19,842.42

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Solution

The fourth proportional to 67,239.91, 100,836.33 and 19,842.42 is: 29,756.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,239.91 : 100,836.33 = 19,842.42 : x
  2. Step 2: Convert to fraction form
    67,239.91/100,836.33 = 19,842.42/x
  3. Step 3: Cross multiply
    67,239.91x = 100,836.33 × 19,842.42
  4. Step 4: Simplify right side
    67,239.91x = 2,000,836,547.64
  5. Step 5: Solve for x
    x = 2,000,836,547.64/67,239.91
  6. Step 6: Final answer
    x = 29,756.68

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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.