Finding the Fourth Proportional to 91,861.24, 137,676.84 and 39,209.08
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Solution
The fourth proportional to 91,861.24, 137,676.84 and 39,209.08 is: 58,764.53
Step by Step Solution
- Step 1: Write the proportion equation
91,861.24 : 137,676.84 = 39,209.08 : x - Step 2: Convert to fraction form
91,861.24/137,676.84 = 39,209.08/x - Step 3: Cross multiply
91,861.24x = 137,676.84 × 39,209.08 - Step 4: Simplify right side
91,861.24x = 5,398,182,233.71 - Step 5: Solve for x
x = 5,398,182,233.71/91,861.24 - Step 6: Final answer
x = 58,764.53
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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.