Home / 87,329.32-131,019.50-28,163.68

Finding the Fourth Proportional to 87,329.32, 131,019.50 and 28,163.68

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Solution

The fourth proportional to 87,329.32, 131,019.50 and 28,163.68 is: 42,253.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,329.32 : 131,019.50 = 28,163.68 : x
  2. Step 2: Convert to fraction form
    87,329.32/131,019.50 = 28,163.68/x
  3. Step 3: Cross multiply
    87,329.32x = 131,019.50 × 28,163.68
  4. Step 4: Simplify right side
    87,329.32x = 3,689,991,130.94
  5. Step 5: Solve for x
    x = 3,689,991,130.94/87,329.32
  6. Step 6: Final answer
    x = 42,253.75

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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.