Home / 66,636.62-99,940.18-19,241.42

Finding the Fourth Proportional to 66,636.62, 99,940.18 and 19,241.42

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Solution

The fourth proportional to 66,636.62, 99,940.18 and 19,241.42 is: 28,857.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,636.62 : 99,940.18 = 19,241.42 : x
  2. Step 2: Convert to fraction form
    66,636.62/99,940.18 = 19,241.42/x
  3. Step 3: Cross multiply
    66,636.62x = 99,940.18 × 19,241.42
  4. Step 4: Simplify right side
    66,636.62x = 1,922,990,382.35
  5. Step 5: Solve for x
    x = 1,922,990,382.35/66,636.62
  6. Step 6: Final answer
    x = 28,857.86

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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.