Home / 87,724.06-121,052.91-49,484.86

Finding the Fourth Proportional to 87,724.06, 121,052.91 and 49,484.86

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Solution

The fourth proportional to 87,724.06, 121,052.91 and 49,484.86 is: 68,285.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,724.06 : 121,052.91 = 49,484.86 : x
  2. Step 2: Convert to fraction form
    87,724.06/121,052.91 = 49,484.86/x
  3. Step 3: Cross multiply
    87,724.06x = 121,052.91 × 49,484.86
  4. Step 4: Simplify right side
    87,724.06x = 5,990,286,303.94
  5. Step 5: Solve for x
    x = 5,990,286,303.94/87,724.06
  6. Step 6: Final answer
    x = 68,285.56

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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.