Home / 74,581.68-111,839.04-21,972.72

Finding the Fourth Proportional to 74,581.68, 111,839.04 and 21,972.72

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Solution

The fourth proportional to 74,581.68, 111,839.04 and 21,972.72 is: 32,949.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,581.68 : 111,839.04 = 21,972.72 : x
  2. Step 2: Convert to fraction form
    74,581.68/111,839.04 = 21,972.72/x
  3. Step 3: Cross multiply
    74,581.68x = 111,839.04 × 21,972.72
  4. Step 4: Simplify right side
    74,581.68x = 2,457,407,910.99
  5. Step 5: Solve for x
    x = 2,457,407,910.99/74,581.68
  6. Step 6: Final answer
    x = 32,949.22

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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.