Home / 71,980.20-108,002.70-25,266.60

Finding the Fourth Proportional to 71,980.20, 108,002.70 and 25,266.60

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Solution

The fourth proportional to 71,980.20, 108,002.70 and 25,266.60 is: 37,911.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,980.20 : 108,002.70 = 25,266.60 : x
  2. Step 2: Convert to fraction form
    71,980.20/108,002.70 = 25,266.60/x
  3. Step 3: Cross multiply
    71,980.20x = 108,002.70 × 25,266.60
  4. Step 4: Simplify right side
    71,980.20x = 2,728,861,019.82
  5. Step 5: Solve for x
    x = 2,728,861,019.82/71,980.20
  6. Step 6: Final answer
    x = 37,911.27

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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.