Finding the Fourth Proportional to 123,678.84, 185,528.62 and 39,451.08
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Solution
The fourth proportional to 123,678.84, 185,528.62 and 39,451.08 is: 59,179.92
Step by Step Solution
- Step 1: Write the proportion equation
123,678.84 : 185,528.62 = 39,451.08 : x - Step 2: Convert to fraction form
123,678.84/185,528.62 = 39,451.08/x - Step 3: Cross multiply
123,678.84x = 185,528.62 × 39,451.08 - Step 4: Simplify right side
123,678.84x = 7,319,304,429.91 - Step 5: Solve for x
x = 7,319,304,429.91/123,678.84 - Step 6: Final answer
x = 59,179.92
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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.