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Finding the Fourth Proportional to 69,982.80, 104,973.72 and 17,392.20

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Solution

The fourth proportional to 69,982.80, 104,973.72 and 17,392.20 is: 26,088.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,982.80 : 104,973.72 = 17,392.20 : x
  2. Step 2: Convert to fraction form
    69,982.80/104,973.72 = 17,392.20/x
  3. Step 3: Cross multiply
    69,982.80x = 104,973.72 × 17,392.20
  4. Step 4: Simplify right side
    69,982.80x = 1,825,723,932.98
  5. Step 5: Solve for x
    x = 1,825,723,932.98/69,982.80
  6. Step 6: Final answer
    x = 26,088.18

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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.