Finding the Fourth Proportional to 115,742.80, 173,623.80 and 36,854.80
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Solution
The fourth proportional to 115,742.80, 173,623.80 and 36,854.80 is: 55,285.26
Step by Step Solution
- Step 1: Write the proportion equation
115,742.80 : 173,623.80 = 36,854.80 : x - Step 2: Convert to fraction form
115,742.80/173,623.80 = 36,854.80/x - Step 3: Cross multiply
115,742.80x = 173,623.80 × 36,854.80 - Step 4: Simplify right side
115,742.80x = 6,398,870,424.24 - Step 5: Solve for x
x = 6,398,870,424.24/115,742.80 - Step 6: Final answer
x = 55,285.26
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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.