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Finding the Fourth Proportional to 56,636, 84,993 and 19,700

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Solution

The fourth proportional to 56,636, 84,993 and 19,700 is: 29,563.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,636 : 84,993 = 19,700 : x
  2. Step 2: Convert to fraction form
    56,636/84,993 = 19,700/x
  3. Step 3: Cross multiply
    56,636x = 84,993 × 19,700
  4. Step 4: Simplify right side
    56,636x = 1,674,362,100
  5. Step 5: Solve for x
    x = 1,674,362,100/56,636
  6. Step 6: Final answer
    x = 29,563.57

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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.