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Finding the Fourth Proportional to 68,983.89, 103,475.58 and 19,063.89

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Solution

The fourth proportional to 68,983.89, 103,475.58 and 19,063.89 is: 28,595.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,983.89 : 103,475.58 = 19,063.89 : x
  2. Step 2: Convert to fraction form
    68,983.89/103,475.58 = 19,063.89/x
  3. Step 3: Cross multiply
    68,983.89x = 103,475.58 × 19,063.89
  4. Step 4: Simplify right side
    68,983.89x = 1,972,647,074.81
  5. Step 5: Solve for x
    x = 1,972,647,074.81/68,983.89
  6. Step 6: Final answer
    x = 28,595.76

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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.