Finding the Fourth Proportional to 75,411.88, 113,117.72 and 19,251.99
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Solution
The fourth proportional to 75,411.88, 113,117.72 and 19,251.99 is: 28,877.96
Step by Step Solution
- Step 1: Write the proportion equation
75,411.88 : 113,117.72 = 19,251.99 : x - Step 2: Convert to fraction form
75,411.88/113,117.72 = 19,251.99/x - Step 3: Cross multiply
75,411.88x = 113,117.72 × 19,251.99 - Step 4: Simplify right side
75,411.88x = 2,177,741,118.00 - Step 5: Solve for x
x = 2,177,741,118.00/75,411.88 - Step 6: Final answer
x = 28,877.96
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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.