Home / 87,772.03-131,661.69-28,608.21

Finding the Fourth Proportional to 87,772.03, 131,661.69 and 28,608.21

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Solution

The fourth proportional to 87,772.03, 131,661.69 and 28,608.21 is: 42,913.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,772.03 : 131,661.69 = 28,608.21 : x
  2. Step 2: Convert to fraction form
    87,772.03/131,661.69 = 28,608.21/x
  3. Step 3: Cross multiply
    87,772.03x = 131,661.69 × 28,608.21
  4. Step 4: Simplify right side
    87,772.03x = 3,766,605,169.19
  5. Step 5: Solve for x
    x = 3,766,605,169.19/87,772.03
  6. Step 6: Final answer
    x = 42,913.50

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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.