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Finding the Fourth Proportional to 68,878, 103,334.34 and 19,630

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Solution

The fourth proportional to 68,878, 103,334.34 and 19,630 is: 29,449.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,878 : 103,334.34 = 19,630 : x
  2. Step 2: Convert to fraction form
    68,878/103,334.34 = 19,630/x
  3. Step 3: Cross multiply
    68,878x = 103,334.34 × 19,630
  4. Step 4: Simplify right side
    68,878x = 2,028,453,094.20
  5. Step 5: Solve for x
    x = 2,028,453,094.20/68,878
  6. Step 6: Final answer
    x = 29,449.94

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.