Finding the Fourth Proportional to 68,412.12, 102,608.28 and 18,495.12
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Solution
The fourth proportional to 68,412.12, 102,608.28 and 18,495.12 is: 27,740.00
Step by Step Solution
- Step 1: Write the proportion equation
68,412.12 : 102,608.28 = 18,495.12 : x - Step 2: Convert to fraction form
68,412.12/102,608.28 = 18,495.12/x - Step 3: Cross multiply
68,412.12x = 102,608.28 × 18,495.12 - Step 4: Simplify right side
68,412.12x = 1,897,752,451.59 - Step 5: Solve for x
x = 1,897,752,451.59/68,412.12 - Step 6: Final answer
x = 27,740.00
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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.