Home / 69,579.80-104,354.20-19,664.56

Finding the Fourth Proportional to 69,579.80, 104,354.20 and 19,664.56

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Solution

The fourth proportional to 69,579.80, 104,354.20 and 19,664.56 is: 29,492.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,579.80 : 104,354.20 = 19,664.56 : x
  2. Step 2: Convert to fraction form
    69,579.80/104,354.20 = 19,664.56/x
  3. Step 3: Cross multiply
    69,579.80x = 104,354.20 × 19,664.56
  4. Step 4: Simplify right side
    69,579.80x = 2,052,079,427.15
  5. Step 5: Solve for x
    x = 2,052,079,427.15/69,579.80
  6. Step 6: Final answer
    x = 29,492.46

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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.