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Finding the Fourth Proportional to 45,388.98, 68,083.44 and 13,799.30

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Solution

The fourth proportional to 45,388.98, 68,083.44 and 13,799.30 is: 20,698.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,388.98 : 68,083.44 = 13,799.30 : x
  2. Step 2: Convert to fraction form
    45,388.98/68,083.44 = 13,799.30/x
  3. Step 3: Cross multiply
    45,388.98x = 68,083.44 × 13,799.30
  4. Step 4: Simplify right side
    45,388.98x = 939,503,473.17
  5. Step 5: Solve for x
    x = 939,503,473.17/45,388.98
  6. Step 6: Final answer
    x = 20,698.93

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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.