Finding the Fourth Proportional to 76,863.63, 106,071.81 and 43,329.63
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Solution
The fourth proportional to 76,863.63, 106,071.81 and 43,329.63 is: 59,794.88
Step by Step Solution
- Step 1: Write the proportion equation
76,863.63 : 106,071.81 = 43,329.63 : x - Step 2: Convert to fraction form
76,863.63/106,071.81 = 43,329.63/x - Step 3: Cross multiply
76,863.63x = 106,071.81 × 43,329.63 - Step 4: Simplify right side
76,863.63x = 4,596,051,533.72 - Step 5: Solve for x
x = 4,596,051,533.72/76,863.63 - Step 6: Final answer
x = 59,794.88
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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.