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Finding the Fourth Proportional to 69,863.16, 104,800.98 and 19,942.32

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Solution

The fourth proportional to 69,863.16, 104,800.98 and 19,942.32 is: 29,915.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,863.16 : 104,800.98 = 19,942.32 : x
  2. Step 2: Convert to fraction form
    69,863.16/104,800.98 = 19,942.32/x
  3. Step 3: Cross multiply
    69,863.16x = 104,800.98 × 19,942.32
  4. Step 4: Simplify right side
    69,863.16x = 2,089,974,679.47
  5. Step 5: Solve for x
    x = 2,089,974,679.47/69,863.16
  6. Step 6: Final answer
    x = 29,915.26

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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.