Finding the Fourth Proportional to 78,296.46, 117,440.50 and 27,691.98
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Solution
The fourth proportional to 78,296.46, 117,440.50 and 27,691.98 is: 41,536.49
Step by Step Solution
- Step 1: Write the proportion equation
78,296.46 : 117,440.50 = 27,691.98 : x - Step 2: Convert to fraction form
78,296.46/117,440.50 = 27,691.98/x - Step 3: Cross multiply
78,296.46x = 117,440.50 × 27,691.98 - Step 4: Simplify right side
78,296.46x = 3,252,159,977.19 - Step 5: Solve for x
x = 3,252,159,977.19/78,296.46 - Step 6: Final answer
x = 41,536.49
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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.