Finding the Fourth Proportional to 79,752.60, 119,629.08 and 74,881.08
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Solution
The fourth proportional to 79,752.60, 119,629.08 and 74,881.08 is: 112,321.79
Step by Step Solution
- Step 1: Write the proportion equation
79,752.60 : 119,629.08 = 74,881.08 : x - Step 2: Convert to fraction form
79,752.60/119,629.08 = 74,881.08/x - Step 3: Cross multiply
79,752.60x = 119,629.08 × 74,881.08 - Step 4: Simplify right side
79,752.60x = 8,957,954,709.81 - Step 5: Solve for x
x = 8,957,954,709.81/79,752.60 - Step 6: Final answer
x = 112,321.79
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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.