Home / 69,093.45-103,640.19-19,173.57

Finding the Fourth Proportional to 69,093.45, 103,640.19 and 19,173.57

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Solution

The fourth proportional to 69,093.45, 103,640.19 and 19,173.57 is: 28,760.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,093.45 : 103,640.19 = 19,173.57 : x
  2. Step 2: Convert to fraction form
    69,093.45/103,640.19 = 19,173.57/x
  3. Step 3: Cross multiply
    69,093.45x = 103,640.19 × 19,173.57
  4. Step 4: Simplify right side
    69,093.45x = 1,987,152,437.78
  5. Step 5: Solve for x
    x = 1,987,152,437.78/69,093.45
  6. Step 6: Final answer
    x = 28,760.36

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1.5x scale

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.