Finding the Fourth Proportional to 79,560.18, 109,789.29 and 43,751.70
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Solution
The fourth proportional to 79,560.18, 109,789.29 and 43,751.70 is: 60,375.28
Step by Step Solution
- Step 1: Write the proportion equation
79,560.18 : 109,789.29 = 43,751.70 : x - Step 2: Convert to fraction form
79,560.18/109,789.29 = 43,751.70/x - Step 3: Cross multiply
79,560.18x = 109,789.29 × 43,751.70 - Step 4: Simplify right side
79,560.18x = 4,803,468,079.29 - Step 5: Solve for x
x = 4,803,468,079.29/79,560.18 - Step 6: Final answer
x = 60,375.28
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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.