Finding the Fourth Proportional to 96,990.22, 133,826.42 and 56,696.18
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Solution
The fourth proportional to 96,990.22, 133,826.42 and 56,696.18 is: 78,228.99
Step by Step Solution
- Step 1: Write the proportion equation
96,990.22 : 133,826.42 = 56,696.18 : x - Step 2: Convert to fraction form
96,990.22/133,826.42 = 56,696.18/x - Step 3: Cross multiply
96,990.22x = 133,826.42 × 56,696.18 - Step 4: Simplify right side
96,990.22x = 7,587,446,797.08 - Step 5: Solve for x
x = 7,587,446,797.08/96,990.22 - Step 6: Final answer
x = 78,228.99
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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.