Finding the Fourth Proportional to 99,861.21, 149,758.88 and 33,282.99
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Solution
The fourth proportional to 99,861.21, 149,758.88 and 33,282.99 is: 49,913.51
Step by Step Solution
- Step 1: Write the proportion equation
99,861.21 : 149,758.88 = 33,282.99 : x - Step 2: Convert to fraction form
99,861.21/149,758.88 = 33,282.99/x - Step 3: Cross multiply
99,861.21x = 149,758.88 × 33,282.99 - Step 4: Simplify right side
99,861.21x = 4,984,423,139.04 - Step 5: Solve for x
x = 4,984,423,139.04/99,861.21 - Step 6: Final answer
x = 49,913.51
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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.