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Finding the Fourth Proportional to 80,972.64, 121,466.88 and 33,577.92

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Solution

The fourth proportional to 80,972.64, 121,466.88 and 33,577.92 is: 50,370.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,972.64 : 121,466.88 = 33,577.92 : x
  2. Step 2: Convert to fraction form
    80,972.64/121,466.88 = 33,577.92/x
  3. Step 3: Cross multiply
    80,972.64x = 121,466.88 × 33,577.92
  4. Step 4: Simplify right side
    80,972.64x = 4,078,605,179.29
  5. Step 5: Solve for x
    x = 4,078,605,179.29/80,972.64
  6. Step 6: Final answer
    x = 50,370.16

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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.