Finding the Fourth Proportional to 99,988.02, 149,990.00 and 33,428.49
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Solution
The fourth proportional to 99,988.02, 149,990.00 and 33,428.49 is: 50,145.40
Step by Step Solution
- Step 1: Write the proportion equation
99,988.02 : 149,990.00 = 33,428.49 : x - Step 2: Convert to fraction form
99,988.02/149,990.00 = 33,428.49/x - Step 3: Cross multiply
99,988.02x = 149,990.00 × 33,428.49 - Step 4: Simplify right side
99,988.02x = 5,013,939,047.96 - Step 5: Solve for x
x = 5,013,939,047.96/99,988.02 - Step 6: Final answer
x = 50,145.40
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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.