Finding the Fourth Proportional to 75,619.20, 113,313.60 and 63,868.80
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Solution
The fourth proportional to 75,619.20, 113,313.60 and 63,868.80 is: 95,705.90
Step by Step Solution
- Step 1: Write the proportion equation
75,619.20 : 113,313.60 = 63,868.80 : x - Step 2: Convert to fraction form
75,619.20/113,313.60 = 63,868.80/x - Step 3: Cross multiply
75,619.20x = 113,313.60 × 63,868.80 - Step 4: Simplify right side
75,619.20x = 7,237,203,655.68 - Step 5: Solve for x
x = 7,237,203,655.68/75,619.20 - Step 6: Final answer
x = 95,705.90
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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.