Finding the Fourth Proportional to 68,252.96, 102,343.80 and 21,493.28
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Solution
The fourth proportional to 68,252.96, 102,343.80 and 21,493.28 is: 32,228.70
Step by Step Solution
- Step 1: Write the proportion equation
68,252.96 : 102,343.80 = 21,493.28 : x - Step 2: Convert to fraction form
68,252.96/102,343.80 = 21,493.28/x - Step 3: Cross multiply
68,252.96x = 102,343.80 × 21,493.28 - Step 4: Simplify right side
68,252.96x = 2,199,703,949.66 - Step 5: Solve for x
x = 2,199,703,949.66/68,252.96 - Step 6: Final answer
x = 32,228.70
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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.