Finding the Fourth Proportional to 99,035.79, 136,668.97 and 53,713.59
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Solution
The fourth proportional to 99,035.79, 136,668.97 and 53,713.59 is: 74,124.53
Step by Step Solution
- Step 1: Write the proportion equation
99,035.79 : 136,668.97 = 53,713.59 : x - Step 2: Convert to fraction form
99,035.79/136,668.97 = 53,713.59/x - Step 3: Cross multiply
99,035.79x = 136,668.97 × 53,713.59 - Step 4: Simplify right side
99,035.79x = 7,340,981,020.30 - Step 5: Solve for x
x = 7,340,981,020.30/99,035.79 - Step 6: Final answer
x = 74,124.53
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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.