Finding the Fourth Proportional to 79,541.24, 109,765.50 and 43,730.96
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Solution
The fourth proportional to 79,541.24, 109,765.50 and 43,730.96 is: 60,347.95
Step by Step Solution
- Step 1: Write the proportion equation
79,541.24 : 109,765.50 = 43,730.96 : x - Step 2: Convert to fraction form
79,541.24/109,765.50 = 43,730.96/x - Step 3: Cross multiply
79,541.24x = 109,765.50 × 43,730.96 - Step 4: Simplify right side
79,541.24x = 4,800,150,689.88 - Step 5: Solve for x
x = 4,800,150,689.88/79,541.24 - Step 6: Final answer
x = 60,347.95
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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.