Finding the Fourth Proportional to 79,985.82, 119,907.36 and 40,522.62
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Solution
The fourth proportional to 79,985.82, 119,907.36 and 40,522.62 is: 60,747.77
Step by Step Solution
- Step 1: Write the proportion equation
79,985.82 : 119,907.36 = 40,522.62 : x - Step 2: Convert to fraction form
79,985.82/119,907.36 = 40,522.62/x - Step 3: Cross multiply
79,985.82x = 119,907.36 × 40,522.62 - Step 4: Simplify right side
79,985.82x = 4,858,960,384.48 - Step 5: Solve for x
x = 4,858,960,384.48/79,985.82 - Step 6: Final answer
x = 60,747.77
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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.