Finding the Fourth Proportional to 81,573.99, 122,335.07 and 55,446.63
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Solution
The fourth proportional to 81,573.99, 122,335.07 and 55,446.63 is: 83,152.33
Step by Step Solution
- Step 1: Write the proportion equation
81,573.99 : 122,335.07 = 55,446.63 : x - Step 2: Convert to fraction form
81,573.99/122,335.07 = 55,446.63/x - Step 3: Cross multiply
81,573.99x = 122,335.07 × 55,446.63 - Step 4: Simplify right side
81,573.99x = 6,783,067,085.08 - Step 5: Solve for x
x = 6,783,067,085.08/81,573.99 - Step 6: Final answer
x = 83,152.33
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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.