Finding the Fourth Proportional to 99,126.75, 136,792.75 and 53,804.82
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Solution
The fourth proportional to 99,126.75, 136,792.75 and 53,804.82 is: 74,249.48
Step by Step Solution
- Step 1: Write the proportion equation
99,126.75 : 136,792.75 = 53,804.82 : x - Step 2: Convert to fraction form
99,126.75/136,792.75 = 53,804.82/x - Step 3: Cross multiply
99,126.75x = 136,792.75 × 53,804.82 - Step 4: Simplify right side
99,126.75x = 7,360,109,770.40 - Step 5: Solve for x
x = 7,360,109,770.40/99,126.75 - Step 6: Final answer
x = 74,249.48
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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.