Home / 74,171.32-111,255.96-18,011.86

Finding the Fourth Proportional to 74,171.32, 111,255.96 and 18,011.86

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Solution

The fourth proportional to 74,171.32, 111,255.96 and 18,011.86 is: 27,017.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,171.32 : 111,255.96 = 18,011.86 : x
  2. Step 2: Convert to fraction form
    74,171.32/111,255.96 = 18,011.86/x
  3. Step 3: Cross multiply
    74,171.32x = 111,255.96 × 18,011.86
  4. Step 4: Simplify right side
    74,171.32x = 2,003,926,775.69
  5. Step 5: Solve for x
    x = 2,003,926,775.69/74,171.32
  6. Step 6: Final answer
    x = 27,017.54

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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.