Finding the Fourth Proportional to 128,484.91, 192,676.29 and 49,548.79
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Solution
The fourth proportional to 128,484.91, 192,676.29 and 49,548.79 is: 74,303.49
Step by Step Solution
- Step 1: Write the proportion equation
128,484.91 : 192,676.29 = 49,548.79 : x - Step 2: Convert to fraction form
128,484.91/192,676.29 = 49,548.79/x - Step 3: Cross multiply
128,484.91x = 192,676.29 × 49,548.79 - Step 4: Simplify right side
128,484.91x = 9,546,877,031.19 - Step 5: Solve for x
x = 9,546,877,031.19/128,484.91 - Step 6: Final answer
x = 74,303.49
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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.