Finding the Fourth Proportional to 80,603.51, 120,905.26 and 36,221.99
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Solution
The fourth proportional to 80,603.51, 120,905.26 and 36,221.99 is: 54,332.98
Step by Step Solution
- Step 1: Write the proportion equation
80,603.51 : 120,905.26 = 36,221.99 : x - Step 2: Convert to fraction form
80,603.51/120,905.26 = 36,221.99/x - Step 3: Cross multiply
80,603.51x = 120,905.26 × 36,221.99 - Step 4: Simplify right side
80,603.51x = 4,379,428,423.59 - Step 5: Solve for x
x = 4,379,428,423.59/80,603.51 - Step 6: Final answer
x = 54,332.98
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Similar ratio
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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.