Home / 87,533.75-131,273.09-28,355.69

Finding the Fourth Proportional to 87,533.75, 131,273.09 and 28,355.69

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Solution

The fourth proportional to 87,533.75, 131,273.09 and 28,355.69 is: 42,524.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,533.75 : 131,273.09 = 28,355.69 : x
  2. Step 2: Convert to fraction form
    87,533.75/131,273.09 = 28,355.69/x
  3. Step 3: Cross multiply
    87,533.75x = 131,273.09 × 28,355.69
  4. Step 4: Simplify right side
    87,533.75x = 3,722,339,338.12
  5. Step 5: Solve for x
    x = 3,722,339,338.12/87,533.75
  6. Step 6: Final answer
    x = 42,524.62

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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.