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Finding the Fourth Proportional to 69,321.72, 95,664 and 37,490.64

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Solution

The fourth proportional to 69,321.72, 95,664 and 37,490.64 is: 51,737.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,321.72 : 95,664 = 37,490.64 : x
  2. Step 2: Convert to fraction form
    69,321.72/95,664 = 37,490.64/x
  3. Step 3: Cross multiply
    69,321.72x = 95,664 × 37,490.64
  4. Step 4: Simplify right side
    69,321.72x = 3,586,504,584.96
  5. Step 5: Solve for x
    x = 3,586,504,584.96/69,321.72
  6. Step 6: Final answer
    x = 51,737.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.