Finding the Fourth Proportional to 97,989.21, 135,227.84 and 55,550.48
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Solution
The fourth proportional to 97,989.21, 135,227.84 and 55,550.48 is: 76,661.20
Step by Step Solution
- Step 1: Write the proportion equation
97,989.21 : 135,227.84 = 55,550.48 : x - Step 2: Convert to fraction form
97,989.21/135,227.84 = 55,550.48/x - Step 3: Cross multiply
97,989.21x = 135,227.84 × 55,550.48 - Step 4: Simplify right side
97,989.21x = 7,511,970,467.47 - Step 5: Solve for x
x = 7,511,970,467.47/97,989.21 - Step 6: Final answer
x = 76,661.20
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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.