Finding the Fourth Proportional to 78,424.08, 108,201.33 and 44,427.12
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Solution
The fourth proportional to 78,424.08, 108,201.33 and 44,427.12 is: 61,295.89
Step by Step Solution
- Step 1: Write the proportion equation
78,424.08 : 108,201.33 = 44,427.12 : x - Step 2: Convert to fraction form
78,424.08/108,201.33 = 44,427.12/x - Step 3: Cross multiply
78,424.08x = 108,201.33 × 44,427.12 - Step 4: Simplify right side
78,424.08x = 4,807,073,472.07 - Step 5: Solve for x
x = 4,807,073,472.07/78,424.08 - Step 6: Final answer
x = 61,295.89
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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.