Home / 87,606.20-131,441.70-28,443.80

Finding the Fourth Proportional to 87,606.20, 131,441.70 and 28,443.80

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Solution

The fourth proportional to 87,606.20, 131,441.70 and 28,443.80 is: 42,676.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,606.20 : 131,441.70 = 28,443.80 : x
  2. Step 2: Convert to fraction form
    87,606.20/131,441.70 = 28,443.80/x
  3. Step 3: Cross multiply
    87,606.20x = 131,441.70 × 28,443.80
  4. Step 4: Simplify right side
    87,606.20x = 3,738,701,426.46
  5. Step 5: Solve for x
    x = 3,738,701,426.46/87,606.20
  6. Step 6: Final answer
    x = 42,676.22

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1.5x scale

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.