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Finding the Fourth Proportional to 87,524.40, 131,189.40 and 48,109.80

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Solution

The fourth proportional to 87,524.40, 131,189.40 and 48,109.80 is: 72,111.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,524.40 : 131,189.40 = 48,109.80 : x
  2. Step 2: Convert to fraction form
    87,524.40/131,189.40 = 48,109.80/x
  3. Step 3: Cross multiply
    87,524.40x = 131,189.40 × 48,109.80
  4. Step 4: Simplify right side
    87,524.40x = 6,311,495,796.12
  5. Step 5: Solve for x
    x = 6,311,495,796.12/87,524.40
  6. Step 6: Final answer
    x = 72,111.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.