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Finding the Fourth Proportional to 72,263.25, 108,396.25 and 19,674.10

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Solution

The fourth proportional to 72,263.25, 108,396.25 and 19,674.10 is: 29,511.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,263.25 : 108,396.25 = 19,674.10 : x
  2. Step 2: Convert to fraction form
    72,263.25/108,396.25 = 19,674.10/x
  3. Step 3: Cross multiply
    72,263.25x = 108,396.25 × 19,674.10
  4. Step 4: Simplify right side
    72,263.25x = 2,132,598,748.44
  5. Step 5: Solve for x
    x = 2,132,598,748.44/72,263.25
  6. Step 6: Final answer
    x = 29,511.53

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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.