Home / 281,981.43-422,997.08-79,579.33

Finding the Fourth Proportional to 281,981.43, 422,997.08 and 79,579.33

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Solution

The fourth proportional to 281,981.43, 422,997.08 and 79,579.33 is: 119,376.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,981.43 : 422,997.08 = 79,579.33 : x
  2. Step 2: Convert to fraction form
    281,981.43/422,997.08 = 79,579.33/x
  3. Step 3: Cross multiply
    281,981.43x = 422,997.08 × 79,579.33
  4. Step 4: Simplify right side
    281,981.43x = 33,661,822,762.97
  5. Step 5: Solve for x
    x = 33,661,822,762.97/281,981.43
  6. Step 6: Final answer
    x = 119,376.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.