Finding the Fourth Proportional to 99,000.44, 136,621.21 and 53,678.02
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Solution
The fourth proportional to 99,000.44, 136,621.21 and 53,678.02 is: 74,075.99
Step by Step Solution
- Step 1: Write the proportion equation
99,000.44 : 136,621.21 = 53,678.02 : x - Step 2: Convert to fraction form
99,000.44/136,621.21 = 53,678.02/x - Step 3: Cross multiply
99,000.44x = 136,621.21 × 53,678.02 - Step 4: Simplify right side
99,000.44x = 7,333,555,567.06 - Step 5: Solve for x
x = 7,333,555,567.06/99,000.44 - Step 6: Final answer
x = 74,075.99
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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.