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Finding the Fourth Proportional to 87,851.80, 131,729.10 and 35,201.80

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Solution

The fourth proportional to 87,851.80, 131,729.10 and 35,201.80 is: 52,783.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,851.80 : 131,729.10 = 35,201.80 : x
  2. Step 2: Convert to fraction form
    87,851.80/131,729.10 = 35,201.80/x
  3. Step 3: Cross multiply
    87,851.80x = 131,729.10 × 35,201.80
  4. Step 4: Simplify right side
    87,851.80x = 4,637,101,432.38
  5. Step 5: Solve for x
    x = 4,637,101,432.38/87,851.80
  6. Step 6: Final answer
    x = 52,783.23

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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.