Home / 74,531.62-111,796.44-18,372.40

Finding the Fourth Proportional to 74,531.62, 111,796.44 and 18,372.40

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Solution

The fourth proportional to 74,531.62, 111,796.44 and 18,372.40 is: 27,558.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,531.62 : 111,796.44 = 18,372.40 : x
  2. Step 2: Convert to fraction form
    74,531.62/111,796.44 = 18,372.40/x
  3. Step 3: Cross multiply
    74,531.62x = 111,796.44 × 18,372.40
  4. Step 4: Simplify right side
    74,531.62x = 2,053,968,914.26
  5. Step 5: Solve for x
    x = 2,053,968,914.26/74,531.62
  6. Step 6: Final answer
    x = 27,558.36

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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.