Home / 67,215.87-100,823.64-17,291.79

Finding the Fourth Proportional to 67,215.87, 100,823.64 and 17,291.79

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Solution

The fourth proportional to 67,215.87, 100,823.64 and 17,291.79 is: 25,937.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,215.87 : 100,823.64 = 17,291.79 : x
  2. Step 2: Convert to fraction form
    67,215.87/100,823.64 = 17,291.79/x
  3. Step 3: Cross multiply
    67,215.87x = 100,823.64 × 17,291.79
  4. Step 4: Simplify right side
    67,215.87x = 1,743,421,209.92
  5. Step 5: Solve for x
    x = 1,743,421,209.92/67,215.87
  6. Step 6: Final answer
    x = 25,937.64

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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.