Finding the Fourth Proportional to 79,433.28, 109,629.43 and 47,605.14
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Solution
The fourth proportional to 79,433.28, 109,629.43 and 47,605.14 is: 65,701.99
Step by Step Solution
- Step 1: Write the proportion equation
79,433.28 : 109,629.43 = 47,605.14 : x - Step 2: Convert to fraction form
79,433.28/109,629.43 = 47,605.14/x - Step 3: Cross multiply
79,433.28x = 109,629.43 × 47,605.14 - Step 4: Simplify right side
79,433.28x = 5,218,924,363.27 - Step 5: Solve for x
x = 5,218,924,363.27/79,433.28 - Step 6: Final answer
x = 65,701.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.