Finding the Fourth Proportional to 81,925.07, 113,056.62 and 47,940.09
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Solution
The fourth proportional to 81,925.07, 113,056.62 and 47,940.09 is: 66,157.33
Step by Step Solution
- Step 1: Write the proportion equation
81,925.07 : 113,056.62 = 47,940.09 : x - Step 2: Convert to fraction form
81,925.07/113,056.62 = 47,940.09/x - Step 3: Cross multiply
81,925.07x = 113,056.62 × 47,940.09 - Step 4: Simplify right side
81,925.07x = 5,419,943,732.91 - Step 5: Solve for x
x = 5,419,943,732.91/81,925.07 - Step 6: Final answer
x = 66,157.33
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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.