Home / 87,289.50-120,450.56-49,042.97

Finding the Fourth Proportional to 87,289.50, 120,450.56 and 49,042.97

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Solution

The fourth proportional to 87,289.50, 120,450.56 and 49,042.97 is: 67,674.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,289.50 : 120,450.56 = 49,042.97 : x
  2. Step 2: Convert to fraction form
    87,289.50/120,450.56 = 49,042.97/x
  3. Step 3: Cross multiply
    87,289.50x = 120,450.56 × 49,042.97
  4. Step 4: Simplify right side
    87,289.50x = 5,907,252,720.92
  5. Step 5: Solve for x
    x = 5,907,252,720.92/87,289.50
  6. Step 6: Final answer
    x = 67,674.26

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1.5x scale

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.