Home / 87,476.10-131,234.98-28,311.77

Finding the Fourth Proportional to 87,476.10, 131,234.98 and 28,311.77

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Solution

The fourth proportional to 87,476.10, 131,234.98 and 28,311.77 is: 42,474.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,476.10 : 131,234.98 = 28,311.77 : x
  2. Step 2: Convert to fraction form
    87,476.10/131,234.98 = 28,311.77/x
  3. Step 3: Cross multiply
    87,476.10x = 131,234.98 × 28,311.77
  4. Step 4: Simplify right side
    87,476.10x = 3,715,494,880.11
  5. Step 5: Solve for x
    x = 3,715,494,880.11/87,476.10
  6. Step 6: Final answer
    x = 42,474.40

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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.