Finding the Fourth Proportional to 75,480.15, 104,160.36 and 43,213.70
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Solution
The fourth proportional to 75,480.15, 104,160.36 and 43,213.70 is: 59,633.62
Step by Step Solution
- Step 1: Write the proportion equation
75,480.15 : 104,160.36 = 43,213.70 : x - Step 2: Convert to fraction form
75,480.15/104,160.36 = 43,213.70/x - Step 3: Cross multiply
75,480.15x = 104,160.36 × 43,213.70 - Step 4: Simplify right side
75,480.15x = 4,501,154,971.38 - Step 5: Solve for x
x = 4,501,154,971.38/75,480.15 - Step 6: Final answer
x = 59,633.62
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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.