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Finding the Fourth Proportional to 87,692.94, 131,551.11 and 28,508.67

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Solution

The fourth proportional to 87,692.94, 131,551.11 and 28,508.67 is: 42,766.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,692.94 : 131,551.11 = 28,508.67 : x
  2. Step 2: Convert to fraction form
    87,692.94/131,551.11 = 28,508.67/x
  3. Step 3: Cross multiply
    87,692.94x = 131,551.11 × 28,508.67
  4. Step 4: Simplify right side
    87,692.94x = 3,750,347,183.12
  5. Step 5: Solve for x
    x = 3,750,347,183.12/87,692.94
  6. Step 6: Final answer
    x = 42,766.81

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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.