Finding the Fourth Proportional to 71,527.16, 107,290.74 and 38,146.09
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Solution
The fourth proportional to 71,527.16, 107,290.74 and 38,146.09 is: 57,219.14
Step by Step Solution
- Step 1: Write the proportion equation
71,527.16 : 107,290.74 = 38,146.09 : x - Step 2: Convert to fraction form
71,527.16/107,290.74 = 38,146.09/x - Step 3: Cross multiply
71,527.16x = 107,290.74 × 38,146.09 - Step 4: Simplify right side
71,527.16x = 4,092,722,224.21 - Step 5: Solve for x
x = 4,092,722,224.21/71,527.16 - Step 6: Final answer
x = 57,219.14
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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.