Finding the Fourth Proportional to 86,732.99, 119,684.90 and 52,736.76
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Solution
The fourth proportional to 86,732.99, 119,684.90 and 52,736.76 is: 72,772.70
Step by Step Solution
- Step 1: Write the proportion equation
86,732.99 : 119,684.90 = 52,736.76 : x - Step 2: Convert to fraction form
86,732.99/119,684.90 = 52,736.76/x - Step 3: Cross multiply
86,732.99x = 119,684.90 × 52,736.76 - Step 4: Simplify right side
86,732.99x = 6,311,793,583.24 - Step 5: Solve for x
x = 6,311,793,583.24/86,732.99 - Step 6: Final answer
x = 72,772.70
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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.