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Finding the Fourth Proportional to 69,704.40, 104,556.60 and 17,113.20

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Solution

The fourth proportional to 69,704.40, 104,556.60 and 17,113.20 is: 25,669.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,704.40 : 104,556.60 = 17,113.20 : x
  2. Step 2: Convert to fraction form
    69,704.40/104,556.60 = 17,113.20/x
  3. Step 3: Cross multiply
    69,704.40x = 104,556.60 × 17,113.20
  4. Step 4: Simplify right side
    69,704.40x = 1,789,298,007.12
  5. Step 5: Solve for x
    x = 1,789,298,007.12/69,704.40
  6. Step 6: Final answer
    x = 25,669.80

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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.