Finding the Fourth Proportional to 75,381.75, 113,124.47 and 26,133.75
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Solution
The fourth proportional to 75,381.75, 113,124.47 and 26,133.75 is: 39,218.60
Step by Step Solution
- Step 1: Write the proportion equation
75,381.75 : 113,124.47 = 26,133.75 : x - Step 2: Convert to fraction form
75,381.75/113,124.47 = 26,133.75/x - Step 3: Cross multiply
75,381.75x = 113,124.47 × 26,133.75 - Step 4: Simplify right side
75,381.75x = 2,956,366,487.19 - Step 5: Solve for x
x = 2,956,366,487.19/75,381.75 - Step 6: Final answer
x = 39,218.60
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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.