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Finding the Fourth Proportional to 71,107.92, 98,120.52 and 39,274.92

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Solution

The fourth proportional to 71,107.92, 98,120.52 and 39,274.92 is: 54,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,107.92 : 98,120.52 = 39,274.92 : x
  2. Step 2: Convert to fraction form
    71,107.92/98,120.52 = 39,274.92/x
  3. Step 3: Cross multiply
    71,107.92x = 98,120.52 × 39,274.92
  4. Step 4: Simplify right side
    71,107.92x = 3,853,675,573.36
  5. Step 5: Solve for x
    x = 3,853,675,573.36/71,107.92
  6. Step 6: Final answer
    x = 54,194.74

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1.5x scale

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.