Finding the Fourth Proportional to 96,339.06, 132,993.36 and 72,474.84
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Solution
The fourth proportional to 96,339.06, 132,993.36 and 72,474.84 is: 100,049.48
Step by Step Solution
- Step 1: Write the proportion equation
96,339.06 : 132,993.36 = 72,474.84 : x - Step 2: Convert to fraction form
96,339.06/132,993.36 = 72,474.84/x - Step 3: Cross multiply
96,339.06x = 132,993.36 × 72,474.84 - Step 4: Simplify right side
96,339.06x = 9,638,672,487.06 - Step 5: Solve for x
x = 9,638,672,487.06/96,339.06 - Step 6: Final answer
x = 100,049.48
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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.