Finding the Fourth Proportional to 85,376.55, 117,819.00 and 47,136.09
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Solution
The fourth proportional to 85,376.55, 117,819.00 and 47,136.09 is: 65,047.45
Step by Step Solution
- Step 1: Write the proportion equation
85,376.55 : 117,819.00 = 47,136.09 : x - Step 2: Convert to fraction form
85,376.55/117,819.00 = 47,136.09/x - Step 3: Cross multiply
85,376.55x = 117,819.00 × 47,136.09 - Step 4: Simplify right side
85,376.55x = 5,553,526,214.48 - Step 5: Solve for x
x = 5,553,526,214.48/85,376.55 - Step 6: Final answer
x = 65,047.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.