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Finding the Fourth Proportional to 65,630.52, 98,473.32 and 28,198.80

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Solution

The fourth proportional to 65,630.52, 98,473.32 and 28,198.80 is: 42,310.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,630.52 : 98,473.32 = 28,198.80 : x
  2. Step 2: Convert to fraction form
    65,630.52/98,473.32 = 28,198.80/x
  3. Step 3: Cross multiply
    65,630.52x = 98,473.32 × 28,198.80
  4. Step 4: Simplify right side
    65,630.52x = 2,776,829,456.02
  5. Step 5: Solve for x
    x = 2,776,829,456.02/65,630.52
  6. Step 6: Final answer
    x = 42,310.03

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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.