Home / 87,638.40-131,457.60-32,227.20

Finding the Fourth Proportional to 87,638.40, 131,457.60 and 32,227.20

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Solution

The fourth proportional to 87,638.40, 131,457.60 and 32,227.20 is: 48,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,638.40 : 131,457.60 = 32,227.20 : x
  2. Step 2: Convert to fraction form
    87,638.40/131,457.60 = 32,227.20/x
  3. Step 3: Cross multiply
    87,638.40x = 131,457.60 × 32,227.20
  4. Step 4: Simplify right side
    87,638.40x = 4,236,510,366.72
  5. Step 5: Solve for x
    x = 4,236,510,366.72/87,638.40
  6. Step 6: Final answer
    x = 48,340.80

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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.