Home / 74,211.54-111,318.53-21,623.91

Finding the Fourth Proportional to 74,211.54, 111,318.53 and 21,623.91

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Solution

The fourth proportional to 74,211.54, 111,318.53 and 21,623.91 is: 32,436.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,211.54 : 111,318.53 = 21,623.91 : x
  2. Step 2: Convert to fraction form
    74,211.54/111,318.53 = 21,623.91/x
  3. Step 3: Cross multiply
    74,211.54x = 111,318.53 × 21,623.91
  4. Step 4: Simplify right side
    74,211.54x = 2,407,141,874.05
  5. Step 5: Solve for x
    x = 2,407,141,874.05/74,211.54
  6. Step 6: Final answer
    x = 32,436.22

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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.