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Finding the Fourth Proportional to 65,270.42, 97,857.73 and 20,871.62

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Solution

The fourth proportional to 65,270.42, 97,857.73 and 20,871.62 is: 31,292.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,270.42 : 97,857.73 = 20,871.62 : x
  2. Step 2: Convert to fraction form
    65,270.42/97,857.73 = 20,871.62/x
  3. Step 3: Cross multiply
    65,270.42x = 97,857.73 × 20,871.62
  4. Step 4: Simplify right side
    65,270.42x = 2,042,449,354.62
  5. Step 5: Solve for x
    x = 2,042,449,354.62/65,270.42
  6. Step 6: Final answer
    x = 31,292.11

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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.