Finding the Fourth Proportional to 74,125.58, 102,292.07 and 40,133.79
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Solution
The fourth proportional to 74,125.58, 102,292.07 and 40,133.79 is: 55,383.97
Step by Step Solution
- Step 1: Write the proportion equation
74,125.58 : 102,292.07 = 40,133.79 : x - Step 2: Convert to fraction form
74,125.58/102,292.07 = 40,133.79/x - Step 3: Cross multiply
74,125.58x = 102,292.07 × 40,133.79 - Step 4: Simplify right side
74,125.58x = 4,105,368,255.38 - Step 5: Solve for x
x = 4,105,368,255.38/74,125.58 - Step 6: Final answer
x = 55,383.97
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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.