Finding the Fourth Proportional to 74,203.28, 102,382.16 and 43,995.68
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Solution
The fourth proportional to 74,203.28, 102,382.16 and 43,995.68 is: 60,703.15
Step by Step Solution
- Step 1: Write the proportion equation
74,203.28 : 102,382.16 = 43,995.68 : x - Step 2: Convert to fraction form
74,203.28/102,382.16 = 43,995.68/x - Step 3: Cross multiply
74,203.28x = 102,382.16 × 43,995.68 - Step 4: Simplify right side
74,203.28x = 4,504,372,749.07 - Step 5: Solve for x
x = 4,504,372,749.07/74,203.28 - Step 6: Final answer
x = 60,703.15
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1.5x scale
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.