Finding the Fourth Proportional to 76,878.71, 106,087.37 and 44,614.28
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Solution
The fourth proportional to 76,878.71, 106,087.37 and 44,614.28 is: 61,564.65
Step by Step Solution
- Step 1: Write the proportion equation
76,878.71 : 106,087.37 = 44,614.28 : x - Step 2: Convert to fraction form
76,878.71/106,087.37 = 44,614.28/x - Step 3: Cross multiply
76,878.71x = 106,087.37 × 44,614.28 - Step 4: Simplify right side
76,878.71x = 4,733,010,876.14 - Step 5: Solve for x
x = 4,733,010,876.14/76,878.71 - Step 6: Final answer
x = 61,564.65
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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.