Finding the Fourth Proportional to 77,707.24, 107,236.40 and 45,891.82
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Solution
The fourth proportional to 77,707.24, 107,236.40 and 45,891.82 is: 63,330.95
Step by Step Solution
- Step 1: Write the proportion equation
77,707.24 : 107,236.40 = 45,891.82 : x - Step 2: Convert to fraction form
77,707.24/107,236.40 = 45,891.82/x - Step 3: Cross multiply
77,707.24x = 107,236.40 × 45,891.82 - Step 4: Simplify right side
77,707.24x = 4,921,273,566.25 - Step 5: Solve for x
x = 4,921,273,566.25/77,707.24 - Step 6: Final answer
x = 63,330.95
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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.