Home / 87,677.28-131,503.68-28,513.44

Finding the Fourth Proportional to 87,677.28, 131,503.68 and 28,513.44

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Solution

The fourth proportional to 87,677.28, 131,503.68 and 28,513.44 is: 42,766.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,677.28 : 131,503.68 = 28,513.44 : x
  2. Step 2: Convert to fraction form
    87,677.28/131,503.68 = 28,513.44/x
  3. Step 3: Cross multiply
    87,677.28x = 131,503.68 × 28,513.44
  4. Step 4: Simplify right side
    87,677.28x = 3,749,622,289.46
  5. Step 5: Solve for x
    x = 3,749,622,289.46/87,677.28
  6. Step 6: Final answer
    x = 42,766.18

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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.