Home / 87,210.53-120,351.35-49,481.81

Finding the Fourth Proportional to 87,210.53, 120,351.35 and 49,481.81

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Solution

The fourth proportional to 87,210.53, 120,351.35 and 49,481.81 is: 68,285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,210.53 : 120,351.35 = 49,481.81 : x
  2. Step 2: Convert to fraction form
    87,210.53/120,351.35 = 49,481.81/x
  3. Step 3: Cross multiply
    87,210.53x = 120,351.35 × 49,481.81
  4. Step 4: Simplify right side
    87,210.53x = 5,955,202,633.94
  5. Step 5: Solve for x
    x = 5,955,202,633.94/87,210.53
  6. Step 6: Final answer
    x = 68,285.36

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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.