Home / 69,679.76-104,519.61-19,760.29

Finding the Fourth Proportional to 69,679.76, 104,519.61 and 19,760.29

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Solution

The fourth proportional to 69,679.76, 104,519.61 and 19,760.29 is: 29,640.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,679.76 : 104,519.61 = 19,760.29 : x
  2. Step 2: Convert to fraction form
    69,679.76/104,519.61 = 19,760.29/x
  3. Step 3: Cross multiply
    69,679.76x = 104,519.61 × 19,760.29
  4. Step 4: Simplify right side
    69,679.76x = 2,065,337,804.29
  5. Step 5: Solve for x
    x = 2,065,337,804.29/69,679.76
  6. Step 6: Final answer
    x = 29,640.43

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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.