Finding the Fourth Proportional to 68,328.82, 102,508.08 and 20,944.09
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Solution
The fourth proportional to 68,328.82, 102,508.08 and 20,944.09 is: 31,420.69
Step by Step Solution
- Step 1: Write the proportion equation
68,328.82 : 102,508.08 = 20,944.09 : x - Step 2: Convert to fraction form
68,328.82/102,508.08 = 20,944.09/x - Step 3: Cross multiply
68,328.82x = 102,508.08 × 20,944.09 - Step 4: Simplify right side
68,328.82x = 2,146,938,453.25 - Step 5: Solve for x
x = 2,146,938,453.25/68,328.82 - Step 6: Final answer
x = 31,420.69
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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.