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Finding the Fourth Proportional to 71,194.42, 98,252.70 and 40,979.08

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Solution

The fourth proportional to 71,194.42, 98,252.70 and 40,979.08 is: 56,553.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,194.42 : 98,252.70 = 40,979.08 : x
  2. Step 2: Convert to fraction form
    71,194.42/98,252.70 = 40,979.08/x
  3. Step 3: Cross multiply
    71,194.42x = 98,252.70 × 40,979.08
  4. Step 4: Simplify right side
    71,194.42x = 4,026,305,253.52
  5. Step 5: Solve for x
    x = 4,026,305,253.52/71,194.42
  6. Step 6: Final answer
    x = 56,553.66

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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.