Finding the Fourth Proportional to 80,896.23, 121,344.35 and 80,779.41
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Solution
The fourth proportional to 80,896.23, 121,344.35 and 80,779.41 is: 121,169.12
Step by Step Solution
- Step 1: Write the proportion equation
80,896.23 : 121,344.35 = 80,779.41 : x - Step 2: Convert to fraction form
80,896.23/121,344.35 = 80,779.41/x - Step 3: Cross multiply
80,896.23x = 121,344.35 × 80,779.41 - Step 4: Simplify right side
80,896.23x = 9,802,124,999.83 - Step 5: Solve for x
x = 9,802,124,999.83/80,896.23 - Step 6: Final answer
x = 121,169.12
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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.