Home / 69,880.80-104,835.04-19,961.33

Finding the Fourth Proportional to 69,880.80, 104,835.04 and 19,961.33

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Solution

The fourth proportional to 69,880.80, 104,835.04 and 19,961.33 is: 29,945.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,880.80 : 104,835.04 = 19,961.33 : x
  2. Step 2: Convert to fraction form
    69,880.80/104,835.04 = 19,961.33/x
  3. Step 3: Cross multiply
    69,880.80x = 104,835.04 × 19,961.33
  4. Step 4: Simplify right side
    69,880.80x = 2,092,646,841.09
  5. Step 5: Solve for x
    x = 2,092,646,841.09/69,880.80
  6. Step 6: Final answer
    x = 29,945.95

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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.