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Finding the Fourth Proportional to 86,958.78, 130,412.04 and 33,641.34

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Solution

The fourth proportional to 86,958.78, 130,412.04 and 33,641.34 is: 50,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,958.78 : 130,412.04 = 33,641.34 : x
  2. Step 2: Convert to fraction form
    86,958.78/130,412.04 = 33,641.34/x
  3. Step 3: Cross multiply
    86,958.78x = 130,412.04 × 33,641.34
  4. Step 4: Simplify right side
    86,958.78x = 4,387,235,777.73
  5. Step 5: Solve for x
    x = 4,387,235,777.73/86,958.78
  6. Step 6: Final answer
    x = 50,451.90

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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.