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Finding the Fourth Proportional to 57,444.72, 86,206 and 20,004.58

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Solution

The fourth proportional to 57,444.72, 86,206 and 20,004.58 is: 30,020.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,444.72 : 86,206 = 20,004.58 : x
  2. Step 2: Convert to fraction form
    57,444.72/86,206 = 20,004.58/x
  3. Step 3: Cross multiply
    57,444.72x = 86,206 × 20,004.58
  4. Step 4: Simplify right side
    57,444.72x = 1,724,514,823.48
  5. Step 5: Solve for x
    x = 1,724,514,823.48/57,444.72
  6. Step 6: Final answer
    x = 30,020.42

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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.