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Finding the Fourth Proportional to 87,636.25, 120,938.03 and 47,350.03

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Solution

The fourth proportional to 87,636.25, 120,938.03 and 47,350.03 is: 65,343.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,636.25 : 120,938.03 = 47,350.03 : x
  2. Step 2: Convert to fraction form
    87,636.25/120,938.03 = 47,350.03/x
  3. Step 3: Cross multiply
    87,636.25x = 120,938.03 × 47,350.03
  4. Step 4: Simplify right side
    87,636.25x = 5,726,418,507.20
  5. Step 5: Solve for x
    x = 5,726,418,507.20/87,636.25
  6. Step 6: Final answer
    x = 65,343.03

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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.