Finding the Fourth Proportional to 78,140.70, 107,827.74 and 44,152.14
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Solution
The fourth proportional to 78,140.70, 107,827.74 and 44,152.14 is: 60,926.32
Step by Step Solution
- Step 1: Write the proportion equation
78,140.70 : 107,827.74 = 44,152.14 : x - Step 2: Convert to fraction form
78,140.70/107,827.74 = 44,152.14/x - Step 3: Cross multiply
78,140.70x = 107,827.74 × 44,152.14 - Step 4: Simplify right side
78,140.70x = 4,760,825,472.36 - Step 5: Solve for x
x = 4,760,825,472.36/78,140.70 - Step 6: Final answer
x = 60,926.32
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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.