Home / 45,109.92-67,668.12-13,941.12

Finding the Fourth Proportional to 45,109.92, 67,668.12 and 13,941.12

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Solution

The fourth proportional to 45,109.92, 67,668.12 and 13,941.12 is: 20,912.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,109.92 : 67,668.12 = 13,941.12 : x
  2. Step 2: Convert to fraction form
    45,109.92/67,668.12 = 13,941.12/x
  3. Step 3: Cross multiply
    45,109.92x = 67,668.12 × 13,941.12
  4. Step 4: Simplify right side
    45,109.92x = 943,369,381.09
  5. Step 5: Solve for x
    x = 943,369,381.09/45,109.92
  6. Step 6: Final answer
    x = 20,912.68

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Similar ratio
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1.5x scale

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.