Finding the Fourth Proportional to 68,268.69, 102,402.99 and 21,525.21
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Solution
The fourth proportional to 68,268.69, 102,402.99 and 21,525.21 is: 32,287.80
Step by Step Solution
- Step 1: Write the proportion equation
68,268.69 : 102,402.99 = 21,525.21 : x - Step 2: Convert to fraction form
68,268.69/102,402.99 = 21,525.21/x - Step 3: Cross multiply
68,268.69x = 102,402.99 × 21,525.21 - Step 4: Simplify right side
68,268.69x = 2,204,245,864.38 - Step 5: Solve for x
x = 2,204,245,864.38/68,268.69 - Step 6: Final answer
x = 32,287.80
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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.