Home / 68,930.70-103,399.44-19,009.69

Finding the Fourth Proportional to 68,930.70, 103,399.44 and 19,009.69

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Solution

The fourth proportional to 68,930.70, 103,399.44 and 19,009.69 is: 28,515.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,930.70 : 103,399.44 = 19,009.69 : x
  2. Step 2: Convert to fraction form
    68,930.70/103,399.44 = 19,009.69/x
  3. Step 3: Cross multiply
    68,930.70x = 103,399.44 × 19,009.69
  4. Step 4: Simplify right side
    68,930.70x = 1,965,590,970.79
  5. Step 5: Solve for x
    x = 1,965,590,970.79/68,930.70
  6. Step 6: Final answer
    x = 28,515.47

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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.