Finding the Fourth Proportional to 74,769.75, 103,067.24 and 49,232.07
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Solution
The fourth proportional to 74,769.75, 103,067.24 and 49,232.07 is: 67,864.52
Step by Step Solution
- Step 1: Write the proportion equation
74,769.75 : 103,067.24 = 49,232.07 : x - Step 2: Convert to fraction form
74,769.75/103,067.24 = 49,232.07/x - Step 3: Cross multiply
74,769.75x = 103,067.24 × 49,232.07 - Step 4: Simplify right side
74,769.75x = 5,074,213,328.23 - Step 5: Solve for x
x = 5,074,213,328.23/74,769.75 - Step 6: Final answer
x = 67,864.52
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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.