Finding the Fourth Proportional to 79,378.28, 119,047.38 and 29,430.92
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Solution
The fourth proportional to 79,378.28, 119,047.38 and 29,430.92 is: 44,138.95
Step by Step Solution
- Step 1: Write the proportion equation
79,378.28 : 119,047.38 = 29,430.92 : x - Step 2: Convert to fraction form
79,378.28/119,047.38 = 29,430.92/x - Step 3: Cross multiply
79,378.28x = 119,047.38 × 29,430.92 - Step 4: Simplify right side
79,378.28x = 3,503,673,916.99 - Step 5: Solve for x
x = 3,503,673,916.99/79,378.28 - Step 6: Final answer
x = 44,138.95
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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.