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Finding the Fourth Proportional to 57,483.86, 86,239.58 and 18,040.91

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Solution

The fourth proportional to 57,483.86, 86,239.58 and 18,040.91 is: 27,065.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,483.86 : 86,239.58 = 18,040.91 : x
  2. Step 2: Convert to fraction form
    57,483.86/86,239.58 = 18,040.91/x
  3. Step 3: Cross multiply
    57,483.86x = 86,239.58 × 18,040.91
  4. Step 4: Simplify right side
    57,483.86x = 1,555,839,979.82
  5. Step 5: Solve for x
    x = 1,555,839,979.82/57,483.86
  6. Step 6: Final answer
    x = 27,065.69

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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.