Home / 87,438.35-120,662.30-49,200.02

Finding the Fourth Proportional to 87,438.35, 120,662.30 and 49,200.02

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Solution

The fourth proportional to 87,438.35, 120,662.30 and 49,200.02 is: 67,894.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,438.35 : 120,662.30 = 49,200.02 : x
  2. Step 2: Convert to fraction form
    87,438.35/120,662.30 = 49,200.02/x
  3. Step 3: Cross multiply
    87,438.35x = 120,662.30 × 49,200.02
  4. Step 4: Simplify right side
    87,438.35x = 5,936,586,723.93
  5. Step 5: Solve for x
    x = 5,936,586,723.93/87,438.35
  6. Step 6: Final answer
    x = 67,894.55

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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.