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Finding the Fourth Proportional to 69,571.45, 104,351.64 and 19,649.53

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Solution

The fourth proportional to 69,571.45, 104,351.64 and 19,649.53 is: 29,472.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,571.45 : 104,351.64 = 19,649.53 : x
  2. Step 2: Convert to fraction form
    69,571.45/104,351.64 = 19,649.53/x
  3. Step 3: Cross multiply
    69,571.45x = 104,351.64 × 19,649.53
  4. Step 4: Simplify right side
    69,571.45x = 2,050,460,680.73
  5. Step 5: Solve for x
    x = 2,050,460,680.73/69,571.45
  6. Step 6: Final answer
    x = 29,472.73

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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.