Finding the Fourth Proportional to 72,305.24, 107,976.67 and 71,523.32
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Solution
The fourth proportional to 72,305.24, 107,976.67 and 71,523.32 is: 106,808.99
Step by Step Solution
- Step 1: Write the proportion equation
72,305.24 : 107,976.67 = 71,523.32 : x - Step 2: Convert to fraction form
72,305.24/107,976.67 = 71,523.32/x - Step 3: Cross multiply
72,305.24x = 107,976.67 × 71,523.32 - Step 4: Simplify right side
72,305.24x = 7,722,849,920.94 - Step 5: Solve for x
x = 7,722,849,920.94/72,305.24 - Step 6: Final answer
x = 106,808.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.