Finding the Fourth Proportional to 77,845.28, 107,427.12 and 44,313.44
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Solution
The fourth proportional to 77,845.28, 107,427.12 and 44,313.44 is: 61,152.91
Step by Step Solution
- Step 1: Write the proportion equation
77,845.28 : 107,427.12 = 44,313.44 : x - Step 2: Convert to fraction form
77,845.28/107,427.12 = 44,313.44/x - Step 3: Cross multiply
77,845.28x = 107,427.12 × 44,313.44 - Step 4: Simplify right side
77,845.28x = 4,760,465,236.49 - Step 5: Solve for x
x = 4,760,465,236.49/77,845.28 - Step 6: Final answer
x = 61,152.91
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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.