Home / 74,775.18-112,183.96-30,433.75

Finding the Fourth Proportional to 74,775.18, 112,183.96 and 30,433.75

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Solution

The fourth proportional to 74,775.18, 112,183.96 and 30,433.75 is: 45,659.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,775.18 : 112,183.96 = 30,433.75 : x
  2. Step 2: Convert to fraction form
    74,775.18/112,183.96 = 30,433.75/x
  3. Step 3: Cross multiply
    74,775.18x = 112,183.96 × 30,433.75
  4. Step 4: Simplify right side
    74,775.18x = 3,414,178,592.65
  5. Step 5: Solve for x
    x = 3,414,178,592.65/74,775.18
  6. Step 6: Final answer
    x = 45,659.25

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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.