Home / 69,708.76-104,569.44-19,789.36

Finding the Fourth Proportional to 69,708.76, 104,569.44 and 19,789.36

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Solution

The fourth proportional to 69,708.76, 104,569.44 and 19,789.36 is: 29,685.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,708.76 : 104,569.44 = 19,789.36 : x
  2. Step 2: Convert to fraction form
    69,708.76/104,569.44 = 19,789.36/x
  3. Step 3: Cross multiply
    69,708.76x = 104,569.44 × 19,789.36
  4. Step 4: Simplify right side
    69,708.76x = 2,069,361,671.36
  5. Step 5: Solve for x
    x = 2,069,361,671.36/69,708.76
  6. Step 6: Final answer
    x = 29,685.82

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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.