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Finding the Fourth Proportional to 66,964.62, 92,404.44 and 40,106.42

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Solution

The fourth proportional to 66,964.62, 92,404.44 and 40,106.42 is: 55,342.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,964.62 : 92,404.44 = 40,106.42 : x
  2. Step 2: Convert to fraction form
    66,964.62/92,404.44 = 40,106.42/x
  3. Step 3: Cross multiply
    66,964.62x = 92,404.44 × 40,106.42
  4. Step 4: Simplify right side
    66,964.62x = 3,706,011,280.50
  5. Step 5: Solve for x
    x = 3,706,011,280.50/66,964.62
  6. Step 6: Final answer
    x = 55,342.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.