Home / 87,086.16-120,179.52-49,360.32

Finding the Fourth Proportional to 87,086.16, 120,179.52 and 49,360.32

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Solution

The fourth proportional to 87,086.16, 120,179.52 and 49,360.32 is: 68,117.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,086.16 : 120,179.52 = 49,360.32 : x
  2. Step 2: Convert to fraction form
    87,086.16/120,179.52 = 49,360.32/x
  3. Step 3: Cross multiply
    87,086.16x = 120,179.52 × 49,360.32
  4. Step 4: Simplify right side
    87,086.16x = 5,932,099,564.65
  5. Step 5: Solve for x
    x = 5,932,099,564.65/87,086.16
  6. Step 6: Final answer
    x = 68,117.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.