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Finding the Fourth Proportional to 69,900.54, 104,843.46 and 19,977.36

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Solution

The fourth proportional to 69,900.54, 104,843.46 and 19,977.36 is: 29,963.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,900.54 : 104,843.46 = 19,977.36 : x
  2. Step 2: Convert to fraction form
    69,900.54/104,843.46 = 19,977.36/x
  3. Step 3: Cross multiply
    69,900.54x = 104,843.46 × 19,977.36
  4. Step 4: Simplify right side
    69,900.54x = 2,094,495,544.07
  5. Step 5: Solve for x
    x = 2,094,495,544.07/69,900.54
  6. Step 6: Final answer
    x = 29,963.94

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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.