Finding the Fourth Proportional to 90,320.62, 135,487.14 and 27,138.10
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Solution
The fourth proportional to 90,320.62, 135,487.14 and 27,138.10 is: 40,709.02
Step by Step Solution
- Step 1: Write the proportion equation
90,320.62 : 135,487.14 = 27,138.10 : x - Step 2: Convert to fraction form
90,320.62/135,487.14 = 27,138.10/x - Step 3: Cross multiply
90,320.62x = 135,487.14 × 27,138.10 - Step 4: Simplify right side
90,320.62x = 3,676,863,554.03 - Step 5: Solve for x
x = 3,676,863,554.03/90,320.62 - Step 6: Final answer
x = 40,709.02
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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.