Finding the Fourth Proportional to 86,378.99, 119,207.07 and 50,580.54
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Solution
The fourth proportional to 86,378.99, 119,207.07 and 50,580.54 is: 69,803.52
Step by Step Solution
- Step 1: Write the proportion equation
86,378.99 : 119,207.07 = 50,580.54 : x - Step 2: Convert to fraction form
86,378.99/119,207.07 = 50,580.54/x - Step 3: Cross multiply
86,378.99x = 119,207.07 × 50,580.54 - Step 4: Simplify right side
86,378.99x = 6,029,557,972.42 - Step 5: Solve for x
x = 6,029,557,972.42/86,378.99 - Step 6: Final answer
x = 69,803.52
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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.