Finding the Fourth Proportional to 99,979.84, 149,997.84 and 29,861.92
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Solution
The fourth proportional to 99,979.84, 149,997.84 and 29,861.92 is: 44,801.27
Step by Step Solution
- Step 1: Write the proportion equation
99,979.84 : 149,997.84 = 29,861.92 : x - Step 2: Convert to fraction form
99,979.84/149,997.84 = 29,861.92/x - Step 3: Cross multiply
99,979.84x = 149,997.84 × 29,861.92 - Step 4: Simplify right side
99,979.84x = 4,479,223,498.25 - Step 5: Solve for x
x = 4,479,223,498.25/99,979.84 - Step 6: Final answer
x = 44,801.27
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.