Finding the Fourth Proportional to 99,765.92, 137,673.36 and 55,052.96
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Solution
The fourth proportional to 99,765.92, 137,673.36 and 55,052.96 is: 75,971.09
Step by Step Solution
- Step 1: Write the proportion equation
99,765.92 : 137,673.36 = 55,052.96 : x - Step 2: Convert to fraction form
99,765.92/137,673.36 = 55,052.96/x - Step 3: Cross multiply
99,765.92x = 137,673.36 × 55,052.96 - Step 4: Simplify right side
99,765.92x = 7,579,325,981.15 - Step 5: Solve for x
x = 7,579,325,981.15/99,765.92 - Step 6: Final answer
x = 75,971.09
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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.