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Finding the Fourth Proportional to 57,795.43, 86,696.15 and 18,355.63

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Solution

The fourth proportional to 57,795.43, 86,696.15 and 18,355.63 is: 27,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,795.43 : 86,696.15 = 18,355.63 : x
  2. Step 2: Convert to fraction form
    57,795.43/86,696.15 = 18,355.63/x
  3. Step 3: Cross multiply
    57,795.43x = 86,696.15 × 18,355.63
  4. Step 4: Simplify right side
    57,795.43x = 1,591,362,360.05
  5. Step 5: Solve for x
    x = 1,591,362,360.05/57,795.43
  6. Step 6: Final answer
    x = 27,534.40

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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.