Finding the Fourth Proportional to 99,635.28, 137,496.84 and 54,313.62
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Solution
The fourth proportional to 99,635.28, 137,496.84 and 54,313.62 is: 74,952.88
Step by Step Solution
- Step 1: Write the proportion equation
99,635.28 : 137,496.84 = 54,313.62 : x - Step 2: Convert to fraction form
99,635.28/137,496.84 = 54,313.62/x - Step 3: Cross multiply
99,635.28x = 137,496.84 × 54,313.62 - Step 4: Simplify right side
99,635.28x = 7,467,951,118.96 - Step 5: Solve for x
x = 7,467,951,118.96/99,635.28 - Step 6: Final answer
x = 74,952.88
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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.