Finding the Fourth Proportional to 68,268.26, 102,419.66 and 19,020.26
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Solution
The fourth proportional to 68,268.26, 102,419.66 and 19,020.26 is: 28,535.20
Step by Step Solution
- Step 1: Write the proportion equation
68,268.26 : 102,419.66 = 19,020.26 : x - Step 2: Convert to fraction form
68,268.26/102,419.66 = 19,020.26/x - Step 3: Cross multiply
68,268.26x = 102,419.66 × 19,020.26 - Step 4: Simplify right side
68,268.26x = 1,948,048,562.31 - Step 5: Solve for x
x = 1,948,048,562.31/68,268.26 - Step 6: Final answer
x = 28,535.20
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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.