Home / 87,037.54-120,111.60-49,311.79

Finding the Fourth Proportional to 87,037.54, 120,111.60 and 49,311.79

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Solution

The fourth proportional to 87,037.54, 120,111.60 and 49,311.79 is: 68,050.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,037.54 : 120,111.60 = 49,311.79 : x
  2. Step 2: Convert to fraction form
    87,037.54/120,111.60 = 49,311.79/x
  3. Step 3: Cross multiply
    87,037.54x = 120,111.60 × 49,311.79
  4. Step 4: Simplify right side
    87,037.54x = 5,922,917,995.76
  5. Step 5: Solve for x
    x = 5,922,917,995.76/87,037.54
  6. Step 6: Final answer
    x = 68,050.15

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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.