Finding the Fourth Proportional to 91,089.54, 125,704.26 and 50,805.90
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Solution
The fourth proportional to 91,089.54, 125,704.26 and 50,805.90 is: 70,112.53
Step by Step Solution
- Step 1: Write the proportion equation
91,089.54 : 125,704.26 = 50,805.90 : x - Step 2: Convert to fraction form
91,089.54/125,704.26 = 50,805.90/x - Step 3: Cross multiply
91,089.54x = 125,704.26 × 50,805.90 - Step 4: Simplify right side
91,089.54x = 6,386,518,063.13 - Step 5: Solve for x
x = 6,386,518,063.13/91,089.54 - Step 6: Final answer
x = 70,112.53
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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.