Home / 67,209.45-100,815.16-17,288.43

Finding the Fourth Proportional to 67,209.45, 100,815.16 and 17,288.43

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Solution

The fourth proportional to 67,209.45, 100,815.16 and 17,288.43 is: 25,932.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,209.45 : 100,815.16 = 17,288.43 : x
  2. Step 2: Convert to fraction form
    67,209.45/100,815.16 = 17,288.43/x
  3. Step 3: Cross multiply
    67,209.45x = 100,815.16 × 17,288.43
  4. Step 4: Simplify right side
    67,209.45x = 1,742,935,836.60
  5. Step 5: Solve for x
    x = 1,742,935,836.60/67,209.45
  6. Step 6: Final answer
    x = 25,932.90

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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.