Finding the Fourth Proportional to 71,731.60, 107,544.36 and 34,260.88
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Solution
The fourth proportional to 71,731.60, 107,544.36 and 34,260.88 is: 51,365.99
Step by Step Solution
- Step 1: Write the proportion equation
71,731.60 : 107,544.36 = 34,260.88 : x - Step 2: Convert to fraction form
71,731.60/107,544.36 = 34,260.88/x - Step 3: Cross multiply
71,731.60x = 107,544.36 × 34,260.88 - Step 4: Simplify right side
71,731.60x = 3,684,564,412.64 - Step 5: Solve for x
x = 3,684,564,412.64/71,731.60 - Step 6: Final answer
x = 51,365.99
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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.