Finding the Fourth Proportional to 71,386.80, 107,047.80 and 26,998.80
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Solution
The fourth proportional to 71,386.80, 107,047.80 and 26,998.80 is: 40,485.95
Step by Step Solution
- Step 1: Write the proportion equation
71,386.80 : 107,047.80 = 26,998.80 : x - Step 2: Convert to fraction form
71,386.80/107,047.80 = 26,998.80/x - Step 3: Cross multiply
71,386.80x = 107,047.80 × 26,998.80 - Step 4: Simplify right side
71,386.80x = 2,890,162,142.64 - Step 5: Solve for x
x = 2,890,162,142.64/71,386.80 - Step 6: Final answer
x = 40,485.95
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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.