Finding the Fourth Proportional to 79,757.60, 119,636.58 and 74,886.08
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Solution
The fourth proportional to 79,757.60, 119,636.58 and 74,886.08 is: 112,329.29
Step by Step Solution
- Step 1: Write the proportion equation
79,757.60 : 119,636.58 = 74,886.08 : x - Step 2: Convert to fraction form
79,757.60/119,636.58 = 74,886.08/x - Step 3: Cross multiply
79,757.60x = 119,636.58 × 74,886.08 - Step 4: Simplify right side
79,757.60x = 8,959,114,500.81 - Step 5: Solve for x
x = 8,959,114,500.81/79,757.60 - Step 6: Final answer
x = 112,329.29
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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.