Home / 74,246.72-111,375.54-21,657.60

Finding the Fourth Proportional to 74,246.72, 111,375.54 and 21,657.60

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Solution

The fourth proportional to 74,246.72, 111,375.54 and 21,657.60 is: 32,487.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,246.72 : 111,375.54 = 21,657.60 : x
  2. Step 2: Convert to fraction form
    74,246.72/111,375.54 = 21,657.60/x
  3. Step 3: Cross multiply
    74,246.72x = 111,375.54 × 21,657.60
  4. Step 4: Simplify right side
    74,246.72x = 2,412,126,895.10
  5. Step 5: Solve for x
    x = 2,412,126,895.10/74,246.72
  6. Step 6: Final answer
    x = 32,487.99

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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.