Finding the Fourth Proportional to 73,876.80, 110,884.80 and 38,841.60
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Solution
The fourth proportional to 73,876.80, 110,884.80 and 38,841.60 is: 58,298.99
Step by Step Solution
- Step 1: Write the proportion equation
73,876.80 : 110,884.80 = 38,841.60 : x - Step 2: Convert to fraction form
73,876.80/110,884.80 = 38,841.60/x - Step 3: Cross multiply
73,876.80x = 110,884.80 × 38,841.60 - Step 4: Simplify right side
73,876.80x = 4,306,943,047.68 - Step 5: Solve for x
x = 4,306,943,047.68/73,876.80 - Step 6: Final answer
x = 58,298.99
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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.