Home / 74,286.10-111,429.39-18,882.10

Finding the Fourth Proportional to 74,286.10, 111,429.39 and 18,882.10

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Solution

The fourth proportional to 74,286.10, 111,429.39 and 18,882.10 is: 28,323.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,286.10 : 111,429.39 = 18,882.10 : x
  2. Step 2: Convert to fraction form
    74,286.10/111,429.39 = 18,882.10/x
  3. Step 3: Cross multiply
    74,286.10x = 111,429.39 × 18,882.10
  4. Step 4: Simplify right side
    74,286.10x = 2,104,020,884.92
  5. Step 5: Solve for x
    x = 2,104,020,884.92/74,286.10
  6. Step 6: Final answer
    x = 28,323.21

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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.