Home / 87,772.06-131,632.95-28,612.90

Finding the Fourth Proportional to 87,772.06, 131,632.95 and 28,612.90

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Solution

The fourth proportional to 87,772.06, 131,632.95 and 28,612.90 is: 42,911.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,772.06 : 131,632.95 = 28,612.90 : x
  2. Step 2: Convert to fraction form
    87,772.06/131,632.95 = 28,612.90/x
  3. Step 3: Cross multiply
    87,772.06x = 131,632.95 × 28,612.90
  4. Step 4: Simplify right side
    87,772.06x = 3,766,400,435.06
  5. Step 5: Solve for x
    x = 3,766,400,435.06/87,772.06
  6. Step 6: Final answer
    x = 42,911.15

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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.