Home / 68,788.34-103,175.60-18,873.46

Finding the Fourth Proportional to 68,788.34, 103,175.60 and 18,873.46

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Solution

The fourth proportional to 68,788.34, 103,175.60 and 18,873.46 is: 28,308.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,788.34 : 103,175.60 = 18,873.46 : x
  2. Step 2: Convert to fraction form
    68,788.34/103,175.60 = 18,873.46/x
  3. Step 3: Cross multiply
    68,788.34x = 103,175.60 × 18,873.46
  4. Step 4: Simplify right side
    68,788.34x = 1,947,280,559.58
  5. Step 5: Solve for x
    x = 1,947,280,559.58/68,788.34
  6. Step 6: Final answer
    x = 28,308.29

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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.