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Finding the Fourth Proportional to 57,969.54, 86,954.31 and 18,530.10

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Solution

The fourth proportional to 57,969.54, 86,954.31 and 18,530.10 is: 27,795.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,969.54 : 86,954.31 = 18,530.10 : x
  2. Step 2: Convert to fraction form
    57,969.54/86,954.31 = 18,530.10/x
  3. Step 3: Cross multiply
    57,969.54x = 86,954.31 × 18,530.10
  4. Step 4: Simplify right side
    57,969.54x = 1,611,272,059.73
  5. Step 5: Solve for x
    x = 1,611,272,059.73/57,969.54
  6. Step 6: Final answer
    x = 27,795.15

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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.