Finding the Fourth Proportional to 84,855.47, 127,336.80 and 47,440.09
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Solution
The fourth proportional to 84,855.47, 127,336.80 and 47,440.09 is: 71,190.09
Step by Step Solution
- Step 1: Write the proportion equation
84,855.47 : 127,336.80 = 47,440.09 : x - Step 2: Convert to fraction form
84,855.47/127,336.80 = 47,440.09/x - Step 3: Cross multiply
84,855.47x = 127,336.80 × 47,440.09 - Step 4: Simplify right side
84,855.47x = 6,040,868,615.63 - Step 5: Solve for x
x = 6,040,868,615.63/84,855.47 - Step 6: Final answer
x = 71,190.09
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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.