Finding the Fourth Proportional to 84,906.90, 117,135.18 and 53,020.44
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Solution
The fourth proportional to 84,906.90, 117,135.18 and 53,020.44 is: 73,145.51
Step by Step Solution
- Step 1: Write the proportion equation
84,906.90 : 117,135.18 = 53,020.44 : x - Step 2: Convert to fraction form
84,906.90/117,135.18 = 53,020.44/x - Step 3: Cross multiply
84,906.90x = 117,135.18 × 53,020.44 - Step 4: Simplify right side
84,906.90x = 6,210,558,783.08 - Step 5: Solve for x
x = 6,210,558,783.08/84,906.90 - Step 6: Final answer
x = 73,145.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.