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Finding the Fourth Proportional to 84,433.60, 126,634.20 and 25,271.20

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Solution

The fourth proportional to 84,433.60, 126,634.20 and 25,271.20 is: 37,901.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,433.60 : 126,634.20 = 25,271.20 : x
  2. Step 2: Convert to fraction form
    84,433.60/126,634.20 = 25,271.20/x
  3. Step 3: Cross multiply
    84,433.60x = 126,634.20 × 25,271.20
  4. Step 4: Simplify right side
    84,433.60x = 3,200,198,195.04
  5. Step 5: Solve for x
    x = 3,200,198,195.04/84,433.60
  6. Step 6: Final answer
    x = 37,901.95

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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.