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Finding the Fourth Proportional to 73,118.80, 109,590 and 33,621.76

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Solution

The fourth proportional to 73,118.80, 109,590 and 33,621.76 is: 50,392.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,118.80 : 109,590 = 33,621.76 : x
  2. Step 2: Convert to fraction form
    73,118.80/109,590 = 33,621.76/x
  3. Step 3: Cross multiply
    73,118.80x = 109,590 × 33,621.76
  4. Step 4: Simplify right side
    73,118.80x = 3,684,608,678.40
  5. Step 5: Solve for x
    x = 3,684,608,678.40/73,118.80
  6. Step 6: Final answer
    x = 50,392.08

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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.