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Finding the Fourth Proportional to 79,611.71, 119,319.12 and 40,180.10

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Solution

The fourth proportional to 79,611.71, 119,319.12 and 40,180.10 is: 60,220.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,611.71 : 119,319.12 = 40,180.10 : x
  2. Step 2: Convert to fraction form
    79,611.71/119,319.12 = 40,180.10/x
  3. Step 3: Cross multiply
    79,611.71x = 119,319.12 × 40,180.10
  4. Step 4: Simplify right side
    79,611.71x = 4,794,253,576.92
  5. Step 5: Solve for x
    x = 4,794,253,576.92/79,611.71
  6. Step 6: Final answer
    x = 60,220.46

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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.