Finding the Fourth Proportional to 75,864.86, 113,811.93 and 29,114.09
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Solution
The fourth proportional to 75,864.86, 113,811.93 and 29,114.09 is: 43,676.75
Step by Step Solution
- Step 1: Write the proportion equation
75,864.86 : 113,811.93 = 29,114.09 : x - Step 2: Convert to fraction form
75,864.86/113,811.93 = 29,114.09/x - Step 3: Cross multiply
75,864.86x = 113,811.93 × 29,114.09 - Step 4: Simplify right side
75,864.86x = 3,313,530,204.03 - Step 5: Solve for x
x = 3,313,530,204.03/75,864.86 - Step 6: Final answer
x = 43,676.75
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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.