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Finding the Fourth Proportional to 56,629, 84,944.22 and 19,693

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Solution

The fourth proportional to 56,629, 84,944.22 and 19,693 is: 29,539.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,629 : 84,944.22 = 19,693 : x
  2. Step 2: Convert to fraction form
    56,629/84,944.22 = 19,693/x
  3. Step 3: Cross multiply
    56,629x = 84,944.22 × 19,693
  4. Step 4: Simplify right side
    56,629x = 1,672,806,524.46
  5. Step 5: Solve for x
    x = 1,672,806,524.46/56,629
  6. Step 6: Final answer
    x = 29,539.75

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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.