Home / 87,050.62-120,128.16-50,758.84

Finding the Fourth Proportional to 87,050.62, 120,128.16 and 50,758.84

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Solution

The fourth proportional to 87,050.62, 120,128.16 and 50,758.84 is: 70,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,050.62 : 120,128.16 = 50,758.84 : x
  2. Step 2: Convert to fraction form
    87,050.62/120,128.16 = 50,758.84/x
  3. Step 3: Cross multiply
    87,050.62x = 120,128.16 × 50,758.84
  4. Step 4: Simplify right side
    87,050.62x = 6,097,566,052.93
  5. Step 5: Solve for x
    x = 6,097,566,052.93/87,050.62
  6. Step 6: Final answer
    x = 70,046.21

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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.