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Finding the Fourth Proportional to 65,651.88, 98,469.62 and 18,270.53

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Solution

The fourth proportional to 65,651.88, 98,469.62 and 18,270.53 is: 27,403.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,651.88 : 98,469.62 = 18,270.53 : x
  2. Step 2: Convert to fraction form
    65,651.88/98,469.62 = 18,270.53/x
  3. Step 3: Cross multiply
    65,651.88x = 98,469.62 × 18,270.53
  4. Step 4: Simplify right side
    65,651.88x = 1,799,092,000.37
  5. Step 5: Solve for x
    x = 1,799,092,000.37/65,651.88
  6. Step 6: Final answer
    x = 27,403.51

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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.