Home / 69,784.18-104,660.55-19,863.17

Finding the Fourth Proportional to 69,784.18, 104,660.55 and 19,863.17

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Solution

The fourth proportional to 69,784.18, 104,660.55 and 19,863.17 is: 29,790.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,784.18 : 104,660.55 = 19,863.17 : x
  2. Step 2: Convert to fraction form
    69,784.18/104,660.55 = 19,863.17/x
  3. Step 3: Cross multiply
    69,784.18x = 104,660.55 × 19,863.17
  4. Step 4: Simplify right side
    69,784.18x = 2,078,890,296.94
  5. Step 5: Solve for x
    x = 2,078,890,296.94/69,784.18
  6. Step 6: Final answer
    x = 29,790.28

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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.