Finding the Fourth Proportional to 81,245.19, 112,115.00 and 44,451.23
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Solution
The fourth proportional to 81,245.19, 112,115.00 and 44,451.23 is: 61,340.85
Step by Step Solution
- Step 1: Write the proportion equation
81,245.19 : 112,115.00 = 44,451.23 : x - Step 2: Convert to fraction form
81,245.19/112,115.00 = 44,451.23/x - Step 3: Cross multiply
81,245.19x = 112,115.00 × 44,451.23 - Step 4: Simplify right side
81,245.19x = 4,983,648,868.62 - Step 5: Solve for x
x = 4,983,648,868.62/81,245.19 - Step 6: Final answer
x = 61,340.85
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1.5x scale
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.