Home / 74,188.14-111,282.21-18,027.78

Finding the Fourth Proportional to 74,188.14, 111,282.21 and 18,027.78

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Solution

The fourth proportional to 74,188.14, 111,282.21 and 18,027.78 is: 27,041.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,188.14 : 111,282.21 = 18,027.78 : x
  2. Step 2: Convert to fraction form
    74,188.14/111,282.21 = 18,027.78/x
  3. Step 3: Cross multiply
    74,188.14x = 111,282.21 × 18,027.78
  4. Step 4: Simplify right side
    74,188.14x = 2,006,171,199.79
  5. Step 5: Solve for x
    x = 2,006,171,199.79/74,188.14
  6. Step 6: Final answer
    x = 27,041.67

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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.