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Finding the Fourth Proportional to 80,533.68, 120,806.44 and 21,368.04

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Solution

The fourth proportional to 80,533.68, 120,806.44 and 21,368.04 is: 32,053.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,533.68 : 120,806.44 = 21,368.04 : x
  2. Step 2: Convert to fraction form
    80,533.68/120,806.44 = 21,368.04/x
  3. Step 3: Cross multiply
    80,533.68x = 120,806.44 × 21,368.04
  4. Step 4: Simplify right side
    80,533.68x = 2,581,396,842.18
  5. Step 5: Solve for x
    x = 2,581,396,842.18/80,533.68
  6. Step 6: Final answer
    x = 32,053.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.