Finding the Fourth Proportional to 73,745.54, 110,636.07 and 21,154.56
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Solution
The fourth proportional to 73,745.54, 110,636.07 and 21,154.56 is: 31,736.94
Step by Step Solution
- Step 1: Write the proportion equation
73,745.54 : 110,636.07 = 21,154.56 : x - Step 2: Convert to fraction form
73,745.54/110,636.07 = 21,154.56/x - Step 3: Cross multiply
73,745.54x = 110,636.07 × 21,154.56 - Step 4: Simplify right side
73,745.54x = 2,340,457,380.98 - Step 5: Solve for x
x = 2,340,457,380.98/73,745.54 - Step 6: Final answer
x = 31,736.94
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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.