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Finding the Fourth Proportional to 101,660.41, 152,431.62 and 38,485.41

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Solution

The fourth proportional to 101,660.41, 152,431.62 and 38,485.41 is: 57,705.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,660.41 : 152,431.62 = 38,485.41 : x
  2. Step 2: Convert to fraction form
    101,660.41/152,431.62 = 38,485.41/x
  3. Step 3: Cross multiply
    101,660.41x = 152,431.62 × 38,485.41
  4. Step 4: Simplify right side
    101,660.41x = 5,866,393,392.66
  5. Step 5: Solve for x
    x = 5,866,393,392.66/101,660.41
  6. Step 6: Final answer
    x = 57,705.78

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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.