Finding the Fourth Proportional to 75,108.75, 103,656.56 and 41,581.23
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Solution
The fourth proportional to 75,108.75, 103,656.56 and 41,581.23 is: 57,385.68
Step by Step Solution
- Step 1: Write the proportion equation
75,108.75 : 103,656.56 = 41,581.23 : x - Step 2: Convert to fraction form
75,108.75/103,656.56 = 41,581.23/x - Step 3: Cross multiply
75,108.75x = 103,656.56 × 41,581.23 - Step 4: Simplify right side
75,108.75x = 4,310,167,054.46 - Step 5: Solve for x
x = 4,310,167,054.46/75,108.75 - Step 6: Final answer
x = 57,385.68
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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.