Finding the Fourth Proportional to 68,328.36, 102,503.52 and 21,577.68
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Solution
The fourth proportional to 68,328.36, 102,503.52 and 21,577.68 is: 32,369.99
Step by Step Solution
- Step 1: Write the proportion equation
68,328.36 : 102,503.52 = 21,577.68 : x - Step 2: Convert to fraction form
68,328.36/102,503.52 = 21,577.68/x - Step 3: Cross multiply
68,328.36x = 102,503.52 × 21,577.68 - Step 4: Simplify right side
68,328.36x = 2,211,788,153.43 - Step 5: Solve for x
x = 2,211,788,153.43/68,328.36 - Step 6: Final answer
x = 32,369.99
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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.