Finding the Fourth Proportional to 83,692.50, 115,467.54 and 47,388.99
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Solution
The fourth proportional to 83,692.50, 115,467.54 and 47,388.99 is: 65,380.89
Step by Step Solution
- Step 1: Write the proportion equation
83,692.50 : 115,467.54 = 47,388.99 : x - Step 2: Convert to fraction form
83,692.50/115,467.54 = 47,388.99/x - Step 3: Cross multiply
83,692.50x = 115,467.54 × 47,388.99 - Step 4: Simplify right side
83,692.50x = 5,471,890,098.38 - Step 5: Solve for x
x = 5,471,890,098.38/83,692.50 - Step 6: Final answer
x = 65,380.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.