Finding the Fourth Proportional to 75,890.80, 113,850.48 and 29,140.08
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Solution
The fourth proportional to 75,890.80, 113,850.48 and 29,140.08 is: 43,715.60
Step by Step Solution
- Step 1: Write the proportion equation
75,890.80 : 113,850.48 = 29,140.08 : x - Step 2: Convert to fraction form
75,890.80/113,850.48 = 29,140.08/x - Step 3: Cross multiply
75,890.80x = 113,850.48 × 29,140.08 - Step 4: Simplify right side
75,890.80x = 3,317,612,095.24 - Step 5: Solve for x
x = 3,317,612,095.24/75,890.80 - Step 6: Final answer
x = 43,715.60
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1.5x scale
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.