Finding the Fourth Proportional to 68,661.44, 102,993.96 and 21,914.28
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Solution
The fourth proportional to 68,661.44, 102,993.96 and 21,914.28 is: 32,871.99
Step by Step Solution
- Step 1: Write the proportion equation
68,661.44 : 102,993.96 = 21,914.28 : x - Step 2: Convert to fraction form
68,661.44/102,993.96 = 21,914.28/x - Step 3: Cross multiply
68,661.44x = 102,993.96 × 21,914.28 - Step 4: Simplify right side
68,661.44x = 2,257,038,477.75 - Step 5: Solve for x
x = 2,257,038,477.75/68,661.44 - Step 6: Final answer
x = 32,871.99
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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.