Finding the Fourth Proportional to 99,286.08, 137,021.60 and 54,574.08
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Solution
The fourth proportional to 99,286.08, 137,021.60 and 54,574.08 is: 75,315.97
Step by Step Solution
- Step 1: Write the proportion equation
99,286.08 : 137,021.60 = 54,574.08 : x - Step 2: Convert to fraction form
99,286.08/137,021.60 = 54,574.08/x - Step 3: Cross multiply
99,286.08x = 137,021.60 × 54,574.08 - Step 4: Simplify right side
99,286.08x = 7,477,827,760.13 - Step 5: Solve for x
x = 7,477,827,760.13/99,286.08 - Step 6: Final answer
x = 75,315.97
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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.