Finding the Fourth Proportional to 114,811.20, 172,229.36 and 38,964.49
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Solution
The fourth proportional to 114,811.20, 172,229.36 and 38,964.49 is: 58,450.99
Step by Step Solution
- Step 1: Write the proportion equation
114,811.20 : 172,229.36 = 38,964.49 : x - Step 2: Convert to fraction form
114,811.20/172,229.36 = 38,964.49/x - Step 3: Cross multiply
114,811.20x = 172,229.36 × 38,964.49 - Step 4: Simplify right side
114,811.20x = 6,710,828,550.03 - Step 5: Solve for x
x = 6,710,828,550.03/114,811.20 - Step 6: Final answer
x = 58,450.99
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1.5x scale
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.