Finding the Fourth Proportional to 71,644.41, 107,469.63 and 21,723.09
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Solution
The fourth proportional to 71,644.41, 107,469.63 and 21,723.09 is: 32,585.55
Step by Step Solution
- Step 1: Write the proportion equation
71,644.41 : 107,469.63 = 21,723.09 : x - Step 2: Convert to fraction form
71,644.41/107,469.63 = 21,723.09/x - Step 3: Cross multiply
71,644.41x = 107,469.63 × 21,723.09 - Step 4: Simplify right side
71,644.41x = 2,334,572,444.76 - Step 5: Solve for x
x = 2,334,572,444.76/71,644.41 - Step 6: Final answer
x = 32,585.55
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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.