Finding the Fourth Proportional to 97,957.38, 135,191.80 and 57,680.94
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Solution
The fourth proportional to 97,957.38, 135,191.80 and 57,680.94 is: 79,605.95
Step by Step Solution
- Step 1: Write the proportion equation
97,957.38 : 135,191.80 = 57,680.94 : x - Step 2: Convert to fraction form
97,957.38/135,191.80 = 57,680.94/x - Step 3: Cross multiply
97,957.38x = 135,191.80 × 57,680.94 - Step 4: Simplify right side
97,957.38x = 7,797,990,104.29 - Step 5: Solve for x
x = 7,797,990,104.29/97,957.38 - Step 6: Final answer
x = 79,605.95
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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.