Finding the Fourth Proportional to 78,343.68, 117,493.20 and 22,180.08
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Solution
The fourth proportional to 78,343.68, 117,493.20 and 22,180.08 is: 33,263.80
Step by Step Solution
- Step 1: Write the proportion equation
78,343.68 : 117,493.20 = 22,180.08 : x - Step 2: Convert to fraction form
78,343.68/117,493.20 = 22,180.08/x - Step 3: Cross multiply
78,343.68x = 117,493.20 × 22,180.08 - Step 4: Simplify right side
78,343.68x = 2,606,008,575.46 - Step 5: Solve for x
x = 2,606,008,575.46/78,343.68 - Step 6: Final answer
x = 33,263.80
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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.