Finding the Fourth Proportional to 75,474.36, 113,225.22 and 61,557.75
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Solution
The fourth proportional to 75,474.36, 113,225.22 and 61,557.75 is: 92,347.78
Step by Step Solution
- Step 1: Write the proportion equation
75,474.36 : 113,225.22 = 61,557.75 : x - Step 2: Convert to fraction form
75,474.36/113,225.22 = 61,557.75/x - Step 3: Cross multiply
75,474.36x = 113,225.22 × 61,557.75 - Step 4: Simplify right side
75,474.36x = 6,969,889,786.46 - Step 5: Solve for x
x = 6,969,889,786.46/75,474.36 - Step 6: Final answer
x = 92,347.78
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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.