Finding the Fourth Proportional to 84,311.60, 126,467.37 and 25,188.75
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Solution
The fourth proportional to 84,311.60, 126,467.37 and 25,188.75 is: 37,783.12
Step by Step Solution
- Step 1: Write the proportion equation
84,311.60 : 126,467.37 = 25,188.75 : x - Step 2: Convert to fraction form
84,311.60/126,467.37 = 25,188.75/x - Step 3: Cross multiply
84,311.60x = 126,467.37 × 25,188.75 - Step 4: Simplify right side
84,311.60x = 3,185,554,966.09 - Step 5: Solve for x
x = 3,185,554,966.09/84,311.60 - Step 6: Final answer
x = 37,783.12
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1.5x scale
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.