Finding the Fourth Proportional to 81,527.99, 112,509.79 and 49,258.13
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Solution
The fourth proportional to 81,527.99, 112,509.79 and 49,258.13 is: 67,976.92
Step by Step Solution
- Step 1: Write the proportion equation
81,527.99 : 112,509.79 = 49,258.13 : x - Step 2: Convert to fraction form
81,527.99/112,509.79 = 49,258.13/x - Step 3: Cross multiply
81,527.99x = 112,509.79 × 49,258.13 - Step 4: Simplify right side
81,527.99x = 5,542,021,598.31 - Step 5: Solve for x
x = 5,542,021,598.31/81,527.99 - Step 6: Final answer
x = 67,976.92
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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.