Finding the Fourth Proportional to 128,576.05, 192,894.87 and 53,654.52
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Solution
The fourth proportional to 128,576.05, 192,894.87 and 53,654.52 is: 80,494.63
Step by Step Solution
- Step 1: Write the proportion equation
128,576.05 : 192,894.87 = 53,654.52 : x - Step 2: Convert to fraction form
128,576.05/192,894.87 = 53,654.52/x - Step 3: Cross multiply
128,576.05x = 192,894.87 × 53,654.52 - Step 4: Simplify right side
128,576.05x = 10,349,681,660.31 - Step 5: Solve for x
x = 10,349,681,660.31/128,576.05 - Step 6: Final answer
x = 80,494.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.