Finding the Fourth Proportional to 103,044.78, 154,589.34 and 31,965.99
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Solution
The fourth proportional to 103,044.78, 154,589.34 and 31,965.99 is: 47,955.86
Step by Step Solution
- Step 1: Write the proportion equation
103,044.78 : 154,589.34 = 31,965.99 : x - Step 2: Convert to fraction form
103,044.78/154,589.34 = 31,965.99/x - Step 3: Cross multiply
103,044.78x = 154,589.34 × 31,965.99 - Step 4: Simplify right side
103,044.78x = 4,941,601,296.55 - Step 5: Solve for x
x = 4,941,601,296.55/103,044.78 - Step 6: Final answer
x = 47,955.86
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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.