Finding the Fourth Proportional to 71,684.73, 107,539.79 and 27,315.63
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Solution
The fourth proportional to 71,684.73, 107,539.79 and 27,315.63 is: 40,978.28
Step by Step Solution
- Step 1: Write the proportion equation
71,684.73 : 107,539.79 = 27,315.63 : x - Step 2: Convert to fraction form
71,684.73/107,539.79 = 27,315.63/x - Step 3: Cross multiply
71,684.73x = 107,539.79 × 27,315.63 - Step 4: Simplify right side
71,684.73x = 2,937,516,977.34 - Step 5: Solve for x
x = 2,937,516,977.34/71,684.73 - Step 6: Final answer
x = 40,978.28
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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.