Home / 87,835.60-131,839.80-43,512.40

Finding the Fourth Proportional to 87,835.60, 131,839.80 and 43,512.40

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Solution

The fourth proportional to 87,835.60, 131,839.80 and 43,512.40 is: 65,311.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,835.60 : 131,839.80 = 43,512.40 : x
  2. Step 2: Convert to fraction form
    87,835.60/131,839.80 = 43,512.40/x
  3. Step 3: Cross multiply
    87,835.60x = 131,839.80 × 43,512.40
  4. Step 4: Simplify right side
    87,835.60x = 5,736,666,113.52
  5. Step 5: Solve for x
    x = 5,736,666,113.52/87,835.60
  6. Step 6: Final answer
    x = 65,311.40

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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.