Finding the Fourth Proportional to 99,530.75, 137,352.44 and 54,818.75
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Solution
The fourth proportional to 99,530.75, 137,352.44 and 54,818.75 is: 75,649.88
Step by Step Solution
- Step 1: Write the proportion equation
99,530.75 : 137,352.44 = 54,818.75 : x - Step 2: Convert to fraction form
99,530.75/137,352.44 = 54,818.75/x - Step 3: Cross multiply
99,530.75x = 137,352.44 × 54,818.75 - Step 4: Simplify right side
99,530.75x = 7,529,489,070.25 - Step 5: Solve for x
x = 7,529,489,070.25/99,530.75 - Step 6: Final answer
x = 75,649.88
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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.