Finding the Fourth Proportional to 74,357.96, 102,615.84 and 40,366.44
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Solution
The fourth proportional to 74,357.96, 102,615.84 and 40,366.44 is: 55,706.70
Step by Step Solution
- Step 1: Write the proportion equation
74,357.96 : 102,615.84 = 40,366.44 : x - Step 2: Convert to fraction form
74,357.96/102,615.84 = 40,366.44/x - Step 3: Cross multiply
74,357.96x = 102,615.84 × 40,366.44 - Step 4: Simplify right side
74,357.96x = 4,142,236,148.41 - Step 5: Solve for x
x = 4,142,236,148.41/74,357.96 - Step 6: Final answer
x = 55,706.70
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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.