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Finding the Fourth Proportional to 57,726.60, 86,592.60 and 18,286.80

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Solution

The fourth proportional to 57,726.60, 86,592.60 and 18,286.80 is: 27,431.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,726.60 : 86,592.60 = 18,286.80 : x
  2. Step 2: Convert to fraction form
    57,726.60/86,592.60 = 18,286.80/x
  3. Step 3: Cross multiply
    57,726.60x = 86,592.60 × 18,286.80
  4. Step 4: Simplify right side
    57,726.60x = 1,583,501,557.68
  5. Step 5: Solve for x
    x = 1,583,501,557.68/57,726.60
  6. Step 6: Final answer
    x = 27,431.06

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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.