Home / 74,579.84-111,857.28-21,976.96

Finding the Fourth Proportional to 74,579.84, 111,857.28 and 21,976.96

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Solution

The fourth proportional to 74,579.84, 111,857.28 and 21,976.96 is: 32,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,579.84 : 111,857.28 = 21,976.96 : x
  2. Step 2: Convert to fraction form
    74,579.84/111,857.28 = 21,976.96/x
  3. Step 3: Cross multiply
    74,579.84x = 111,857.28 × 21,976.96
  4. Step 4: Simplify right side
    74,579.84x = 2,458,282,968.27
  5. Step 5: Solve for x
    x = 2,458,282,968.27/74,579.84
  6. Step 6: Final answer
    x = 32,961.76

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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.