Finding the Fourth Proportional to 90,279.99, 135,369.33 and 61,849.05
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Solution
The fourth proportional to 90,279.99, 135,369.33 and 61,849.05 is: 92,738.88
Step by Step Solution
- Step 1: Write the proportion equation
90,279.99 : 135,369.33 = 61,849.05 : x - Step 2: Convert to fraction form
90,279.99/135,369.33 = 61,849.05/x - Step 3: Cross multiply
90,279.99x = 135,369.33 × 61,849.05 - Step 4: Simplify right side
90,279.99x = 8,372,464,735.34 - Step 5: Solve for x
x = 8,372,464,735.34/90,279.99 - Step 6: Final answer
x = 92,738.88
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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.