Finding the Fourth Proportional to 81,655.38, 122,368.86 and 44,235.81
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Solution
The fourth proportional to 81,655.38, 122,368.86 and 44,235.81 is: 66,291.84
Step by Step Solution
- Step 1: Write the proportion equation
81,655.38 : 122,368.86 = 44,235.81 : x - Step 2: Convert to fraction form
81,655.38/122,368.86 = 44,235.81/x - Step 3: Cross multiply
81,655.38x = 122,368.86 × 44,235.81 - Step 4: Simplify right side
81,655.38x = 5,413,085,640.88 - Step 5: Solve for x
x = 5,413,085,640.88/81,655.38 - Step 6: Final answer
x = 66,291.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.