Home / 87,789.99-121,150.60-49,551.16

Finding the Fourth Proportional to 87,789.99, 121,150.60 and 49,551.16

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Solution

The fourth proportional to 87,789.99, 121,150.60 and 49,551.16 is: 68,380.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,789.99 : 121,150.60 = 49,551.16 : x
  2. Step 2: Convert to fraction form
    87,789.99/121,150.60 = 49,551.16/x
  3. Step 3: Cross multiply
    87,789.99x = 121,150.60 × 49,551.16
  4. Step 4: Simplify right side
    87,789.99x = 6,003,152,158.94
  5. Step 5: Solve for x
    x = 6,003,152,158.94/87,789.99
  6. Step 6: Final answer
    x = 68,380.83

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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.