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Finding the Fourth Proportional to 87,999.20, 131,883.60 and 35,365.60

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Solution

The fourth proportional to 87,999.20, 131,883.60 and 35,365.60 is: 53,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,999.20 : 131,883.60 = 35,365.60 : x
  2. Step 2: Convert to fraction form
    87,999.20/131,883.60 = 35,365.60/x
  3. Step 3: Cross multiply
    87,999.20x = 131,883.60 × 35,365.60
  4. Step 4: Simplify right side
    87,999.20x = 4,664,142,644.16
  5. Step 5: Solve for x
    x = 4,664,142,644.16/87,999.20
  6. Step 6: Final answer
    x = 53,002.10

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1.5x scale

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.