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Finding the Fourth Proportional to 69,479.70, 104,210.33 and 19,563.69

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Solution

The fourth proportional to 69,479.70, 104,210.33 and 19,563.69 is: 29,342.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,479.70 : 104,210.33 = 19,563.69 : x
  2. Step 2: Convert to fraction form
    69,479.70/104,210.33 = 19,563.69/x
  3. Step 3: Cross multiply
    69,479.70x = 104,210.33 × 19,563.69
  4. Step 4: Simplify right side
    69,479.70x = 2,038,738,542.01
  5. Step 5: Solve for x
    x = 2,038,738,542.01/69,479.70
  6. Step 6: Final answer
    x = 29,342.94

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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.