Finding the Fourth Proportional to 99,935.31, 137,904.84 and 54,604.26
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Solution
The fourth proportional to 99,935.31, 137,904.84 and 54,604.26 is: 75,350.66
Step by Step Solution
- Step 1: Write the proportion equation
99,935.31 : 137,904.84 = 54,604.26 : x - Step 2: Convert to fraction form
99,935.31/137,904.84 = 54,604.26/x - Step 3: Cross multiply
99,935.31x = 137,904.84 × 54,604.26 - Step 4: Simplify right side
99,935.31x = 7,530,191,738.62 - Step 5: Solve for x
x = 7,530,191,738.62/99,935.31 - Step 6: Final answer
x = 75,350.66
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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.