Finding the Fourth Proportional to 71,380.80, 107,038.80 and 26,992.80
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Solution
The fourth proportional to 71,380.80, 107,038.80 and 26,992.80 is: 40,476.95
Step by Step Solution
- Step 1: Write the proportion equation
71,380.80 : 107,038.80 = 26,992.80 : x - Step 2: Convert to fraction form
71,380.80/107,038.80 = 26,992.80/x - Step 3: Cross multiply
71,380.80x = 107,038.80 × 26,992.80 - Step 4: Simplify right side
71,380.80x = 2,889,276,920.64 - Step 5: Solve for x
x = 2,889,276,920.64/71,380.80 - Step 6: Final answer
x = 40,476.95
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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.