Finding the Fourth Proportional to 68,268.80, 102,403.24 and 21,525.32
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Solution
The fourth proportional to 68,268.80, 102,403.24 and 21,525.32 is: 32,287.99
Step by Step Solution
- Step 1: Write the proportion equation
68,268.80 : 102,403.24 = 21,525.32 : x - Step 2: Convert to fraction form
68,268.80/102,403.24 = 21,525.32/x - Step 3: Cross multiply
68,268.80x = 102,403.24 × 21,525.32 - Step 4: Simplify right side
68,268.80x = 2,204,262,510.04 - Step 5: Solve for x
x = 2,204,262,510.04/68,268.80 - Step 6: Final answer
x = 32,287.99
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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.