Finding the Fourth Proportional to 86,601.80, 129,902.70 and 63,273.80
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Solution
The fourth proportional to 86,601.80, 129,902.70 and 63,273.80 is: 94,910.70
Step by Step Solution
- Step 1: Write the proportion equation
86,601.80 : 129,902.70 = 63,273.80 : x - Step 2: Convert to fraction form
86,601.80/129,902.70 = 63,273.80/x - Step 3: Cross multiply
86,601.80x = 129,902.70 × 63,273.80 - Step 4: Simplify right side
86,601.80x = 8,219,437,459.26 - Step 5: Solve for x
x = 8,219,437,459.26/86,601.80 - Step 6: Final answer
x = 94,910.70
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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.