Finding the Fourth Proportional to 85,257.08, 117,729.06 and 53,480.60
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Solution
The fourth proportional to 85,257.08, 117,729.06 and 53,480.60 is: 73,849.83
Step by Step Solution
- Step 1: Write the proportion equation
85,257.08 : 117,729.06 = 53,480.60 : x - Step 2: Convert to fraction form
85,257.08/117,729.06 = 53,480.60/x - Step 3: Cross multiply
85,257.08x = 117,729.06 × 53,480.60 - Step 4: Simplify right side
85,257.08x = 6,296,220,766.24 - Step 5: Solve for x
x = 6,296,220,766.24/85,257.08 - Step 6: Final answer
x = 73,849.83
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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.