Finding the Fourth Proportional to 70,908.34, 106,354.26 and 18,313.68
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Solution
The fourth proportional to 70,908.34, 106,354.26 and 18,313.68 is: 27,468.39
Step by Step Solution
- Step 1: Write the proportion equation
70,908.34 : 106,354.26 = 18,313.68 : x - Step 2: Convert to fraction form
70,908.34/106,354.26 = 18,313.68/x - Step 3: Cross multiply
70,908.34x = 106,354.26 × 18,313.68 - Step 4: Simplify right side
70,908.34x = 1,947,737,884.28 - Step 5: Solve for x
x = 1,947,737,884.28/70,908.34 - Step 6: Final answer
x = 27,468.39
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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.