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Finding the Fourth Proportional to 71,724.67, 98,982.42 and 39,460.63

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Solution

The fourth proportional to 71,724.67, 98,982.42 and 39,460.63 is: 54,456.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,724.67 : 98,982.42 = 39,460.63 : x
  2. Step 2: Convert to fraction form
    71,724.67/98,982.42 = 39,460.63/x
  3. Step 3: Cross multiply
    71,724.67x = 98,982.42 × 39,460.63
  4. Step 4: Simplify right side
    71,724.67x = 3,905,908,652.12
  5. Step 5: Solve for x
    x = 3,905,908,652.12/71,724.67
  6. Step 6: Final answer
    x = 54,456.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.