Finding the Fourth Proportional to 91,279.08, 136,607.10 and 76,504.68
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Solution
The fourth proportional to 91,279.08, 136,607.10 and 76,504.68 is: 114,495.92
Step by Step Solution
- Step 1: Write the proportion equation
91,279.08 : 136,607.10 = 76,504.68 : x - Step 2: Convert to fraction form
91,279.08/136,607.10 = 76,504.68/x - Step 3: Cross multiply
91,279.08x = 136,607.10 × 76,504.68 - Step 4: Simplify right side
91,279.08x = 10,451,082,471.23 - Step 5: Solve for x
x = 10,451,082,471.23/91,279.08 - Step 6: Final answer
x = 114,495.92
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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.