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Finding the Fourth Proportional to 57,553.37, 79,435.90 and 38,679.56

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Solution

The fourth proportional to 57,553.37, 79,435.90 and 38,679.56 is: 53,386.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,553.37 : 79,435.90 = 38,679.56 : x
  2. Step 2: Convert to fraction form
    57,553.37/79,435.90 = 38,679.56/x
  3. Step 3: Cross multiply
    57,553.37x = 79,435.90 × 38,679.56
  4. Step 4: Simplify right side
    57,553.37x = 3,072,545,069.63
  5. Step 5: Solve for x
    x = 3,072,545,069.63/57,553.37
  6. Step 6: Final answer
    x = 53,386.02

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