Finding the Fourth Proportional to 98,843.67, 136,404.35 and 53,521.68
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Solution
The fourth proportional to 98,843.67, 136,404.35 and 53,521.68 is: 73,859.96
Step by Step Solution
- Step 1: Write the proportion equation
98,843.67 : 136,404.35 = 53,521.68 : x - Step 2: Convert to fraction form
98,843.67/136,404.35 = 53,521.68/x - Step 3: Cross multiply
98,843.67x = 136,404.35 × 53,521.68 - Step 4: Simplify right side
98,843.67x = 7,300,589,971.31 - Step 5: Solve for x
x = 7,300,589,971.31/98,843.67 - Step 6: Final answer
x = 73,859.96
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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.