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Finding the Fourth Proportional to 56,634, 84,990 and 19,698

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Solution

The fourth proportional to 56,634, 84,990 and 19,698 is: 29,560.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,634 : 84,990 = 19,698 : x
  2. Step 2: Convert to fraction form
    56,634/84,990 = 19,698/x
  3. Step 3: Cross multiply
    56,634x = 84,990 × 19,698
  4. Step 4: Simplify right side
    56,634x = 1,674,133,020
  5. Step 5: Solve for x
    x = 1,674,133,020/56,634
  6. Step 6: Final answer
    x = 29,560.56

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.