Home / 87,870.40-131,780.72-43,523.44

Finding the Fourth Proportional to 87,870.40, 131,780.72 and 43,523.44

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Solution

The fourth proportional to 87,870.40, 131,780.72 and 43,523.44 is: 65,272.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,870.40 : 131,780.72 = 43,523.44 : x
  2. Step 2: Convert to fraction form
    87,870.40/131,780.72 = 43,523.44/x
  3. Step 3: Cross multiply
    87,870.40x = 131,780.72 × 43,523.44
  4. Step 4: Simplify right side
    87,870.40x = 5,735,550,260.08
  5. Step 5: Solve for x
    x = 5,735,550,260.08/87,870.40
  6. Step 6: Final answer
    x = 65,272.84

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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.