Home / 69,710.86-104,566.64-17,120.36

Finding the Fourth Proportional to 69,710.86, 104,566.64 and 17,120.36

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Solution

The fourth proportional to 69,710.86, 104,566.64 and 17,120.36 is: 25,680.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,710.86 : 104,566.64 = 17,120.36 : x
  2. Step 2: Convert to fraction form
    69,710.86/104,566.64 = 17,120.36/x
  3. Step 3: Cross multiply
    69,710.86x = 104,566.64 × 17,120.36
  4. Step 4: Simplify right side
    69,710.86x = 1,790,218,520.79
  5. Step 5: Solve for x
    x = 1,790,218,520.79/69,710.86
  6. Step 6: Final answer
    x = 25,680.63

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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.