Finding the Fourth Proportional to 78,368.40, 117,528.84 and 22,204.08
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Solution
The fourth proportional to 78,368.40, 117,528.84 and 22,204.08 is: 33,299.39
Step by Step Solution
- Step 1: Write the proportion equation
78,368.40 : 117,528.84 = 22,204.08 : x - Step 2: Convert to fraction form
78,368.40/117,528.84 = 22,204.08/x - Step 3: Cross multiply
78,368.40x = 117,528.84 × 22,204.08 - Step 4: Simplify right side
78,368.40x = 2,609,619,765.67 - Step 5: Solve for x
x = 2,609,619,765.67/78,368.40 - Step 6: Final answer
x = 33,299.39
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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.