Finding the Fourth Proportional to 76,131.08, 114,199.74 and 20,727.08
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Solution
The fourth proportional to 76,131.08, 114,199.74 and 20,727.08 is: 31,091.47
Step by Step Solution
- Step 1: Write the proportion equation
76,131.08 : 114,199.74 = 20,727.08 : x - Step 2: Convert to fraction form
76,131.08/114,199.74 = 20,727.08/x - Step 3: Cross multiply
76,131.08x = 114,199.74 × 20,727.08 - Step 4: Simplify right side
76,131.08x = 2,367,027,146.96 - Step 5: Solve for x
x = 2,367,027,146.96/76,131.08 - Step 6: Final answer
x = 31,091.47
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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.