Finding the Fourth Proportional to 92,836.76, 128,135.79 and 58,892.09
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Solution
The fourth proportional to 92,836.76, 128,135.79 and 58,892.09 is: 81,284.44
Step by Step Solution
- Step 1: Write the proportion equation
92,836.76 : 128,135.79 = 58,892.09 : x - Step 2: Convert to fraction form
92,836.76/128,135.79 = 58,892.09/x - Step 3: Cross multiply
92,836.76x = 128,135.79 × 58,892.09 - Step 4: Simplify right side
92,836.76x = 7,546,183,836.22 - Step 5: Solve for x
x = 7,546,183,836.22/92,836.76 - Step 6: Final answer
x = 81,284.44
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1.5x scale
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.