Home / 69,645.42-104,309.64-54,558.36

Finding the Fourth Proportional to 69,645.42, 104,309.64 and 54,558.36

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Solution

The fourth proportional to 69,645.42, 104,309.64 and 54,558.36 is: 81,713.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,645.42 : 104,309.64 = 54,558.36 : x
  2. Step 2: Convert to fraction form
    69,645.42/104,309.64 = 54,558.36/x
  3. Step 3: Cross multiply
    69,645.42x = 104,309.64 × 54,558.36
  4. Step 4: Simplify right side
    69,645.42x = 5,690,962,890.59
  5. Step 5: Solve for x
    x = 5,690,962,890.59/69,645.42
  6. Step 6: Final answer
    x = 81,713.38

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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.