Finding the Fourth Proportional to 85,160.18, 117,515.40 and 51,170.09
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Solution
The fourth proportional to 85,160.18, 117,515.40 and 51,170.09 is: 70,611.33
Step by Step Solution
- Step 1: Write the proportion equation
85,160.18 : 117,515.40 = 51,170.09 : x - Step 2: Convert to fraction form
85,160.18/117,515.40 = 51,170.09/x - Step 3: Cross multiply
85,160.18x = 117,515.40 × 51,170.09 - Step 4: Simplify right side
85,160.18x = 6,013,273,594.39 - Step 5: Solve for x
x = 6,013,273,594.39/85,160.18 - Step 6: Final answer
x = 70,611.33
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1.5x scale
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.