Finding the Fourth Proportional to 99,260.75, 136,979.84 and 54,548.75
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Solution
The fourth proportional to 99,260.75, 136,979.84 and 54,548.75 is: 75,277.28
Step by Step Solution
- Step 1: Write the proportion equation
99,260.75 : 136,979.84 = 54,548.75 : x - Step 2: Convert to fraction form
99,260.75/136,979.84 = 54,548.75/x - Step 3: Cross multiply
99,260.75x = 136,979.84 × 54,548.75 - Step 4: Simplify right side
99,260.75x = 7,472,078,774.46 - Step 5: Solve for x
x = 7,472,078,774.46/99,260.75 - Step 6: Final answer
x = 75,277.28
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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.