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Finding the Fourth Proportional to 69,384.35, 104,057.61 and 19,461.35

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Solution

The fourth proportional to 69,384.35, 104,057.61 and 19,461.35 is: 29,186.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,384.35 : 104,057.61 = 19,461.35 : x
  2. Step 2: Convert to fraction form
    69,384.35/104,057.61 = 19,461.35/x
  3. Step 3: Cross multiply
    69,384.35x = 104,057.61 × 19,461.35
  4. Step 4: Simplify right side
    69,384.35x = 2,025,101,048.09
  5. Step 5: Solve for x
    x = 2,025,101,048.09/69,384.35
  6. Step 6: Final answer
    x = 29,186.71

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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.