Home / 87,662.10-120,973.41-49,942.74

Finding the Fourth Proportional to 87,662.10, 120,973.41 and 49,942.74

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Solution

The fourth proportional to 87,662.10, 120,973.41 and 49,942.74 is: 68,920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,662.10 : 120,973.41 = 49,942.74 : x
  2. Step 2: Convert to fraction form
    87,662.10/120,973.41 = 49,942.74/x
  3. Step 3: Cross multiply
    87,662.10x = 120,973.41 × 49,942.74
  4. Step 4: Simplify right side
    87,662.10x = 6,041,743,562.54
  5. Step 5: Solve for x
    x = 6,041,743,562.54/87,662.10
  6. Step 6: Final answer
    x = 68,920.82

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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.