Home / 87,412.12-120,627.60-49,683.88

Finding the Fourth Proportional to 87,412.12, 120,627.60 and 49,683.88

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Solution

The fourth proportional to 87,412.12, 120,627.60 and 49,683.88 is: 68,563.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,412.12 : 120,627.60 = 49,683.88 : x
  2. Step 2: Convert to fraction form
    87,412.12/120,627.60 = 49,683.88/x
  3. Step 3: Cross multiply
    87,412.12x = 120,627.60 × 49,683.88
  4. Step 4: Simplify right side
    87,412.12x = 5,993,247,203.09
  5. Step 5: Solve for x
    x = 5,993,247,203.09/87,412.12
  6. Step 6: Final answer
    x = 68,563.11

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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.