Finding the Fourth Proportional to 74,125.29, 102,292.96 and 40,133.80
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Solution
The fourth proportional to 74,125.29, 102,292.96 and 40,133.80 is: 55,384.68
Step by Step Solution
- Step 1: Write the proportion equation
74,125.29 : 102,292.96 = 40,133.80 : x - Step 2: Convert to fraction form
74,125.29/102,292.96 = 40,133.80/x - Step 3: Cross multiply
74,125.29x = 102,292.96 × 40,133.80 - Step 4: Simplify right side
74,125.29x = 4,105,405,198.05 - Step 5: Solve for x
x = 4,105,405,198.05/74,125.29 - Step 6: Final answer
x = 55,384.68
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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.