Finding the Fourth Proportional to 91,239.93, 125,909.84 and 53,021.07
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Solution
The fourth proportional to 91,239.93, 125,909.84 and 53,021.07 is: 73,168.34
Step by Step Solution
- Step 1: Write the proportion equation
91,239.93 : 125,909.84 = 53,021.07 : x - Step 2: Convert to fraction form
91,239.93/125,909.84 = 53,021.07/x - Step 3: Cross multiply
91,239.93x = 125,909.84 × 53,021.07 - Step 4: Simplify right side
91,239.93x = 6,675,874,175.22 - Step 5: Solve for x
x = 6,675,874,175.22/91,239.93 - Step 6: Final answer
x = 73,168.34
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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.