Home / 87,431.94-120,656.07-49,706.19

Finding the Fourth Proportional to 87,431.94, 120,656.07 and 49,706.19

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Solution

The fourth proportional to 87,431.94, 120,656.07 and 49,706.19 is: 68,594.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,431.94 : 120,656.07 = 49,706.19 : x
  2. Step 2: Convert to fraction form
    87,431.94/120,656.07 = 49,706.19/x
  3. Step 3: Cross multiply
    87,431.94x = 120,656.07 × 49,706.19
  4. Step 4: Simplify right side
    87,431.94x = 5,997,352,936.79
  5. Step 5: Solve for x
    x = 5,997,352,936.79/87,431.94
  6. Step 6: Final answer
    x = 68,594.54

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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.