Home / 87,396.27-120,607.70-49,670.79

Finding the Fourth Proportional to 87,396.27, 120,607.70 and 49,670.79

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Solution

The fourth proportional to 87,396.27, 120,607.70 and 49,670.79 is: 68,546.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,396.27 : 120,607.70 = 49,670.79 : x
  2. Step 2: Convert to fraction form
    87,396.27/120,607.70 = 49,670.79/x
  3. Step 3: Cross multiply
    87,396.27x = 120,607.70 × 49,670.79
  4. Step 4: Simplify right side
    87,396.27x = 5,990,679,490.73
  5. Step 5: Solve for x
    x = 5,990,679,490.73/87,396.27
  6. Step 6: Final answer
    x = 68,546.17

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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.