Home / 87,778.40-131,724.30-48,363.80

Finding the Fourth Proportional to 87,778.40, 131,724.30 and 48,363.80

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Solution

The fourth proportional to 87,778.40, 131,724.30 and 48,363.80 is: 72,576.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,778.40 : 131,724.30 = 48,363.80 : x
  2. Step 2: Convert to fraction form
    87,778.40/131,724.30 = 48,363.80/x
  3. Step 3: Cross multiply
    87,778.40x = 131,724.30 × 48,363.80
  4. Step 4: Simplify right side
    87,778.40x = 6,370,687,700.34
  5. Step 5: Solve for x
    x = 6,370,687,700.34/87,778.40
  6. Step 6: Final answer
    x = 72,576.94

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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.