Home / 74,545.96-111,823.62-30,171.88

Finding the Fourth Proportional to 74,545.96, 111,823.62 and 30,171.88

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Solution

The fourth proportional to 74,545.96, 111,823.62 and 30,171.88 is: 45,259.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,545.96 : 111,823.62 = 30,171.88 : x
  2. Step 2: Convert to fraction form
    74,545.96/111,823.62 = 30,171.88/x
  3. Step 3: Cross multiply
    74,545.96x = 111,823.62 × 30,171.88
  4. Step 4: Simplify right side
    74,545.96x = 3,373,928,843.81
  5. Step 5: Solve for x
    x = 3,373,928,843.81/74,545.96
  6. Step 6: Final answer
    x = 45,259.71

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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.