Finding the Fourth Proportional to 98,619.75, 136,095.26 and 53,907.75
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Solution
The fourth proportional to 98,619.75, 136,095.26 and 53,907.75 is: 74,392.70
Step by Step Solution
- Step 1: Write the proportion equation
98,619.75 : 136,095.26 = 53,907.75 : x - Step 2: Convert to fraction form
98,619.75/136,095.26 = 53,907.75/x - Step 3: Cross multiply
98,619.75x = 136,095.26 × 53,907.75 - Step 4: Simplify right side
98,619.75x = 7,336,588,982.73 - Step 5: Solve for x
x = 7,336,588,982.73/98,619.75 - Step 6: Final answer
x = 74,392.70
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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.