Finding the Fourth Proportional to 84,541.60, 126,808.05 and 28,382.14
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Solution
The fourth proportional to 84,541.60, 126,808.05 and 28,382.14 is: 42,571.75
Step by Step Solution
- Step 1: Write the proportion equation
84,541.60 : 126,808.05 = 28,382.14 : x - Step 2: Convert to fraction form
84,541.60/126,808.05 = 28,382.14/x - Step 3: Cross multiply
84,541.60x = 126,808.05 × 28,382.14 - Step 4: Simplify right side
84,541.60x = 3,599,083,828.23 - Step 5: Solve for x
x = 3,599,083,828.23/84,541.60 - Step 6: Final answer
x = 42,571.75
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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.