Home / 74,619.73-102,982.49-55,724.05

Finding the Fourth Proportional to 74,619.73, 102,982.49 and 55,724.05

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Solution

The fourth proportional to 74,619.73, 102,982.49 and 55,724.05 is: 76,904.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,619.73 : 102,982.49 = 55,724.05 : x
  2. Step 2: Convert to fraction form
    74,619.73/102,982.49 = 55,724.05/x
  3. Step 3: Cross multiply
    74,619.73x = 102,982.49 × 55,724.05
  4. Step 4: Simplify right side
    74,619.73x = 5,738,601,421.88
  5. Step 5: Solve for x
    x = 5,738,601,421.88/74,619.73
  6. Step 6: Final answer
    x = 76,904.61

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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.