Finding the Fourth Proportional to 76,768.08, 115,181.64 and 26,853.36
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Solution
The fourth proportional to 76,768.08, 115,181.64 and 26,853.36 is: 40,290.37
Step by Step Solution
- Step 1: Write the proportion equation
76,768.08 : 115,181.64 = 26,853.36 : x - Step 2: Convert to fraction form
76,768.08/115,181.64 = 26,853.36/x - Step 3: Cross multiply
76,768.08x = 115,181.64 × 26,853.36 - Step 4: Simplify right side
76,768.08x = 3,093,014,044.31 - Step 5: Solve for x
x = 3,093,014,044.31/76,768.08 - Step 6: Final answer
x = 40,290.37
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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.