Finding the Fourth Proportional to 90,814.58, 136,226.99 and 27,636.76
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Solution
The fourth proportional to 90,814.58, 136,226.99 and 27,636.76 is: 41,456.70
Step by Step Solution
- Step 1: Write the proportion equation
90,814.58 : 136,226.99 = 27,636.76 : x - Step 2: Convert to fraction form
90,814.58/136,226.99 = 27,636.76/x - Step 3: Cross multiply
90,814.58x = 136,226.99 × 27,636.76 - Step 4: Simplify right side
90,814.58x = 3,764,872,149.40 - Step 5: Solve for x
x = 3,764,872,149.40/90,814.58 - Step 6: Final answer
x = 41,456.70
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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.