Home / 87,839.80-131,759.70-48,376.60

Finding the Fourth Proportional to 87,839.80, 131,759.70 and 48,376.60

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Solution

The fourth proportional to 87,839.80, 131,759.70 and 48,376.60 is: 72,564.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,839.80 : 131,759.70 = 48,376.60 : x
  2. Step 2: Convert to fraction form
    87,839.80/131,759.70 = 48,376.60/x
  3. Step 3: Cross multiply
    87,839.80x = 131,759.70 × 48,376.60
  4. Step 4: Simplify right side
    87,839.80x = 6,374,086,303.02
  5. Step 5: Solve for x
    x = 6,374,086,303.02/87,839.80
  6. Step 6: Final answer
    x = 72,564.90

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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.