Finding the Fourth Proportional to 84,178.77, 116,186.57 and 48,389.54
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Solution
The fourth proportional to 84,178.77, 116,186.57 and 48,389.54 is: 66,788.99
Step by Step Solution
- Step 1: Write the proportion equation
84,178.77 : 116,186.57 = 48,389.54 : x - Step 2: Convert to fraction form
84,178.77/116,186.57 = 48,389.54/x - Step 3: Cross multiply
84,178.77x = 116,186.57 × 48,389.54 - Step 4: Simplify right side
84,178.77x = 5,622,214,676.48 - Step 5: Solve for x
x = 5,622,214,676.48/84,178.77 - Step 6: Final answer
x = 66,788.99
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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.