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Finding the Fourth Proportional to 71,181.78, 98,254.18 and 49,966.26

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Solution

The fourth proportional to 71,181.78, 98,254.18 and 49,966.26 is: 68,969.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,181.78 : 98,254.18 = 49,966.26 : x
  2. Step 2: Convert to fraction form
    71,181.78/98,254.18 = 49,966.26/x
  3. Step 3: Cross multiply
    71,181.78x = 98,254.18 × 49,966.26
  4. Step 4: Simplify right side
    71,181.78x = 4,909,393,903.97
  5. Step 5: Solve for x
    x = 4,909,393,903.97/71,181.78
  6. Step 6: Final answer
    x = 68,969.81

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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.