Finding the Fourth Proportional to 76,906.08, 115,490.88 and 47,497.68
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Solution
The fourth proportional to 76,906.08, 115,490.88 and 47,497.68 is: 71,327.90
Step by Step Solution
- Step 1: Write the proportion equation
76,906.08 : 115,490.88 = 47,497.68 : x - Step 2: Convert to fraction form
76,906.08/115,490.88 = 47,497.68/x - Step 3: Cross multiply
76,906.08x = 115,490.88 × 47,497.68 - Step 4: Simplify right side
76,906.08x = 5,485,548,861.16 - Step 5: Solve for x
x = 5,485,548,861.16/76,906.08 - Step 6: Final answer
x = 71,327.90
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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.