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Finding the Fourth Proportional to 57,641.79, 86,460.53 and 18,201.27

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Solution

The fourth proportional to 57,641.79, 86,460.53 and 18,201.27 is: 27,301.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,641.79 : 86,460.53 = 18,201.27 : x
  2. Step 2: Convert to fraction form
    57,641.79/86,460.53 = 18,201.27/x
  3. Step 3: Cross multiply
    57,641.79x = 86,460.53 × 18,201.27
  4. Step 4: Simplify right side
    57,641.79x = 1,573,691,359.87
  5. Step 5: Solve for x
    x = 1,573,691,359.87/57,641.79
  6. Step 6: Final answer
    x = 27,301.22

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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.