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Finding the Fourth Proportional to 70,539.96, 97,344.87 and 38,709.39

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Solution

The fourth proportional to 70,539.96, 97,344.87 and 38,709.39 is: 53,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,539.96 : 97,344.87 = 38,709.39 : x
  2. Step 2: Convert to fraction form
    70,539.96/97,344.87 = 38,709.39/x
  3. Step 3: Cross multiply
    70,539.96x = 97,344.87 × 38,709.39
  4. Step 4: Simplify right side
    70,539.96x = 3,768,160,537.33
  5. Step 5: Solve for x
    x = 3,768,160,537.33/70,539.96
  6. Step 6: Final answer
    x = 53,418.81

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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.