Home / 74,619.86-102,982.66-55,724.18

Finding the Fourth Proportional to 74,619.86, 102,982.66 and 55,724.18

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Solution

The fourth proportional to 74,619.86, 102,982.66 and 55,724.18 is: 76,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,619.86 : 102,982.66 = 55,724.18 : x
  2. Step 2: Convert to fraction form
    74,619.86/102,982.66 = 55,724.18/x
  3. Step 3: Cross multiply
    74,619.86x = 102,982.66 × 55,724.18
  4. Step 4: Simplify right side
    74,619.86x = 5,738,623,628.50
  5. Step 5: Solve for x
    x = 5,738,623,628.50/74,619.86
  6. Step 6: Final answer
    x = 76,904.78

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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.