Finding the Fourth Proportional to 79,861.98, 119,778.92 and 29,250.55
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Solution
The fourth proportional to 79,861.98, 119,778.92 and 29,250.55 is: 43,870.67
Step by Step Solution
- Step 1: Write the proportion equation
79,861.98 : 119,778.92 = 29,250.55 : x - Step 2: Convert to fraction form
79,861.98/119,778.92 = 29,250.55/x - Step 3: Cross multiply
79,861.98x = 119,778.92 × 29,250.55 - Step 4: Simplify right side
79,861.98x = 3,503,598,842.71 - Step 5: Solve for x
x = 3,503,598,842.71/79,861.98 - Step 6: Final answer
x = 43,870.67
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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.