Finding the Fourth Proportional to 81,960.09, 113,103.84 and 46,153.63
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Solution
The fourth proportional to 81,960.09, 113,103.84 and 46,153.63 is: 63,691.40
Step by Step Solution
- Step 1: Write the proportion equation
81,960.09 : 113,103.84 = 46,153.63 : x - Step 2: Convert to fraction form
81,960.09/113,103.84 = 46,153.63/x - Step 3: Cross multiply
81,960.09x = 113,103.84 × 46,153.63 - Step 4: Simplify right side
81,960.09x = 5,220,152,782.94 - Step 5: Solve for x
x = 5,220,152,782.94/81,960.09 - Step 6: Final answer
x = 63,691.40
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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.