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Finding the Fourth Proportional to 56,244, 84,370.32 and 19,308

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Solution

The fourth proportional to 56,244, 84,370.32 and 19,308 is: 28,963.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,244 : 84,370.32 = 19,308 : x
  2. Step 2: Convert to fraction form
    56,244/84,370.32 = 19,308/x
  3. Step 3: Cross multiply
    56,244x = 84,370.32 × 19,308
  4. Step 4: Simplify right side
    56,244x = 1,629,022,138.56
  5. Step 5: Solve for x
    x = 1,629,022,138.56/56,244
  6. Step 6: Final answer
    x = 28,963.48

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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.