Home / 69,815.40-104,723.10-68,663.40

Finding the Fourth Proportional to 69,815.40, 104,723.10 and 68,663.40

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Solution

The fourth proportional to 69,815.40, 104,723.10 and 68,663.40 is: 102,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,815.40 : 104,723.10 = 68,663.40 : x
  2. Step 2: Convert to fraction form
    69,815.40/104,723.10 = 68,663.40/x
  3. Step 3: Cross multiply
    69,815.40x = 104,723.10 × 68,663.40
  4. Step 4: Simplify right side
    69,815.40x = 7,190,644,104.54
  5. Step 5: Solve for x
    x = 7,190,644,104.54/69,815.40
  6. Step 6: Final answer
    x = 102,995.10

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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.