Home / 87,223.40-120,361.43-49,497.65

Finding the Fourth Proportional to 87,223.40, 120,361.43 and 49,497.65

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Solution

The fourth proportional to 87,223.40, 120,361.43 and 49,497.65 is: 68,302.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,223.40 : 120,361.43 = 49,497.65 : x
  2. Step 2: Convert to fraction form
    87,223.40/120,361.43 = 49,497.65/x
  3. Step 3: Cross multiply
    87,223.40x = 120,361.43 × 49,497.65
  4. Step 4: Simplify right side
    87,223.40x = 5,957,607,935.64
  5. Step 5: Solve for x
    x = 5,957,607,935.64/87,223.40
  6. Step 6: Final answer
    x = 68,302.86

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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.