Home / 69,415.12-104,121.76-16,825.08

Finding the Fourth Proportional to 69,415.12, 104,121.76 and 16,825.08

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Solution

The fourth proportional to 69,415.12, 104,121.76 and 16,825.08 is: 25,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,415.12 : 104,121.76 = 16,825.08 : x
  2. Step 2: Convert to fraction form
    69,415.12/104,121.76 = 16,825.08/x
  3. Step 3: Cross multiply
    69,415.12x = 104,121.76 × 16,825.08
  4. Step 4: Simplify right side
    69,415.12x = 1,751,856,941.74
  5. Step 5: Solve for x
    x = 1,751,856,941.74/69,415.12
  6. Step 6: Final answer
    x = 25,237.40

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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.