Home / 87,624.20-131,468.70-28,461.80

Finding the Fourth Proportional to 87,624.20, 131,468.70 and 28,461.80

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Solution

The fourth proportional to 87,624.20, 131,468.70 and 28,461.80 is: 42,703.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,624.20 : 131,468.70 = 28,461.80 : x
  2. Step 2: Convert to fraction form
    87,624.20/131,468.70 = 28,461.80/x
  3. Step 3: Cross multiply
    87,624.20x = 131,468.70 × 28,461.80
  4. Step 4: Simplify right side
    87,624.20x = 3,741,835,845.66
  5. Step 5: Solve for x
    x = 3,741,835,845.66/87,624.20
  6. Step 6: Final answer
    x = 42,703.22

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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.