Finding the Fourth Proportional to 73,965.75, 102,072.74 and 40,431.75
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Solution
The fourth proportional to 73,965.75, 102,072.74 and 40,431.75 is: 55,795.82
Step by Step Solution
- Step 1: Write the proportion equation
73,965.75 : 102,072.74 = 40,431.75 : x - Step 2: Convert to fraction form
73,965.75/102,072.74 = 40,431.75/x - Step 3: Cross multiply
73,965.75x = 102,072.74 × 40,431.75 - Step 4: Simplify right side
73,965.75x = 4,126,979,505.50 - Step 5: Solve for x
x = 4,126,979,505.50/73,965.75 - Step 6: Final answer
x = 55,795.82
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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.