Home / 45,057.28-67,581.60-13,884.16

Finding the Fourth Proportional to 45,057.28, 67,581.60 and 13,884.16

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Solution

The fourth proportional to 45,057.28, 67,581.60 and 13,884.16 is: 20,824.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,057.28 : 67,581.60 = 13,884.16 : x
  2. Step 2: Convert to fraction form
    45,057.28/67,581.60 = 13,884.16/x
  3. Step 3: Cross multiply
    45,057.28x = 67,581.60 × 13,884.16
  4. Step 4: Simplify right side
    45,057.28x = 938,313,747.46
  5. Step 5: Solve for x
    x = 938,313,747.46/45,057.28
  6. Step 6: Final answer
    x = 20,824.91

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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.