Finding the Fourth Proportional to 92,217.88, 138,299.46 and 39,615.09
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Solution
The fourth proportional to 92,217.88, 138,299.46 and 39,615.09 is: 59,410.88
Step by Step Solution
- Step 1: Write the proportion equation
92,217.88 : 138,299.46 = 39,615.09 : x - Step 2: Convert to fraction form
92,217.88/138,299.46 = 39,615.09/x - Step 3: Cross multiply
92,217.88x = 138,299.46 × 39,615.09 - Step 4: Simplify right side
92,217.88x = 5,478,745,554.85 - Step 5: Solve for x
x = 5,478,745,554.85/92,217.88 - Step 6: Final answer
x = 59,410.88
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1.5x scale
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.