Finding the Fourth Proportional to 76,431.68, 114,579.12 and 29,673.44
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Solution
The fourth proportional to 76,431.68, 114,579.12 and 29,673.44 is: 44,483.60
Step by Step Solution
- Step 1: Write the proportion equation
76,431.68 : 114,579.12 = 29,673.44 : x - Step 2: Convert to fraction form
76,431.68/114,579.12 = 29,673.44/x - Step 3: Cross multiply
76,431.68x = 114,579.12 × 29,673.44 - Step 4: Simplify right side
76,431.68x = 3,399,956,642.57 - Step 5: Solve for x
x = 3,399,956,642.57/76,431.68 - Step 6: Final answer
x = 44,483.60
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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.