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Finding the Fourth Proportional to 45,388.73, 68,083.06 and 13,799.05

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Solution

The fourth proportional to 45,388.73, 68,083.06 and 13,799.05 is: 20,698.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,388.73 : 68,083.06 = 13,799.05 : x
  2. Step 2: Convert to fraction form
    45,388.73/68,083.06 = 13,799.05/x
  3. Step 3: Cross multiply
    45,388.73x = 68,083.06 × 13,799.05
  4. Step 4: Simplify right side
    45,388.73x = 939,481,549.09
  5. Step 5: Solve for x
    x = 939,481,549.09/45,388.73
  6. Step 6: Final answer
    x = 20,698.56

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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.