Finding the Fourth Proportional to 75,251.70, 112,877.55 and 19,847.70
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Solution
The fourth proportional to 75,251.70, 112,877.55 and 19,847.70 is: 29,771.55
Step by Step Solution
- Step 1: Write the proportion equation
75,251.70 : 112,877.55 = 19,847.70 : x - Step 2: Convert to fraction form
75,251.70/112,877.55 = 19,847.70/x - Step 3: Cross multiply
75,251.70x = 112,877.55 × 19,847.70 - Step 4: Simplify right side
75,251.70x = 2,240,359,749.14 - Step 5: Solve for x
x = 2,240,359,749.14/75,251.70 - Step 6: Final answer
x = 29,771.55
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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.