Home / 87,479.93-120,705.36-49,234.38

Finding the Fourth Proportional to 87,479.93, 120,705.36 and 49,234.38

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Solution

The fourth proportional to 87,479.93, 120,705.36 and 49,234.38 is: 67,933.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,479.93 : 120,705.36 = 49,234.38 : x
  2. Step 2: Convert to fraction form
    87,479.93/120,705.36 = 49,234.38/x
  3. Step 3: Cross multiply
    87,479.93x = 120,705.36 × 49,234.38
  4. Step 4: Simplify right side
    87,479.93x = 5,942,853,562.28
  5. Step 5: Solve for x
    x = 5,942,853,562.28/87,479.93
  6. Step 6: Final answer
    x = 67,933.91

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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.