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Finding the Fourth Proportional to 69,472.56, 104,215 and 19,553.06

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Solution

The fourth proportional to 69,472.56, 104,215 and 19,553.06 is: 29,331.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,472.56 : 104,215 = 19,553.06 : x
  2. Step 2: Convert to fraction form
    69,472.56/104,215 = 19,553.06/x
  3. Step 3: Cross multiply
    69,472.56x = 104,215 × 19,553.06
  4. Step 4: Simplify right side
    69,472.56x = 2,037,722,147.90
  5. Step 5: Solve for x
    x = 2,037,722,147.90/69,472.56
  6. Step 6: Final answer
    x = 29,331.32

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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.