Home / 67,065.24-100,613.43-19,678.41

Finding the Fourth Proportional to 67,065.24, 100,613.43 and 19,678.41

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Solution

The fourth proportional to 67,065.24, 100,613.43 and 19,678.41 is: 29,522.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,065.24 : 100,613.43 = 19,678.41 : x
  2. Step 2: Convert to fraction form
    67,065.24/100,613.43 = 19,678.41/x
  3. Step 3: Cross multiply
    67,065.24x = 100,613.43 × 19,678.41
  4. Step 4: Simplify right side
    67,065.24x = 1,979,912,327.05
  5. Step 5: Solve for x
    x = 1,979,912,327.05/67,065.24
  6. Step 6: Final answer
    x = 29,522.18

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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.