Finding the Fourth Proportional to 79,657.56, 109,930.58 and 43,850.91
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Solution
The fourth proportional to 79,657.56, 109,930.58 and 43,850.91 is: 60,515.99
Step by Step Solution
- Step 1: Write the proportion equation
79,657.56 : 109,930.58 = 43,850.91 : x - Step 2: Convert to fraction form
79,657.56/109,930.58 = 43,850.91/x - Step 3: Cross multiply
79,657.56x = 109,930.58 × 43,850.91 - Step 4: Simplify right side
79,657.56x = 4,820,555,969.83 - Step 5: Solve for x
x = 4,820,555,969.83/79,657.56 - Step 6: Final answer
x = 60,515.99
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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.