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Finding the Fourth Proportional to 56,889.73, 85,348.28 and 21,829.39

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Solution

The fourth proportional to 56,889.73, 85,348.28 and 21,829.39 is: 32,749.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,889.73 : 85,348.28 = 21,829.39 : x
  2. Step 2: Convert to fraction form
    56,889.73/85,348.28 = 21,829.39/x
  3. Step 3: Cross multiply
    56,889.73x = 85,348.28 × 21,829.39
  4. Step 4: Simplify right side
    56,889.73x = 1,863,100,889.95
  5. Step 5: Solve for x
    x = 1,863,100,889.95/56,889.73
  6. Step 6: Final answer
    x = 32,749.34

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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.