Finding the Fourth Proportional to 84,332.99, 126,517.70 and 31,742.32
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Solution
The fourth proportional to 84,332.99, 126,517.70 and 31,742.32 is: 47,620.34
Step by Step Solution
- Step 1: Write the proportion equation
84,332.99 : 126,517.70 = 31,742.32 : x - Step 2: Convert to fraction form
84,332.99/126,517.70 = 31,742.32/x - Step 3: Cross multiply
84,332.99x = 126,517.70 × 31,742.32 - Step 4: Simplify right side
84,332.99x = 4,015,965,319.06 - Step 5: Solve for x
x = 4,015,965,319.06/84,332.99 - Step 6: Final answer
x = 47,620.34
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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.