Finding the Fourth Proportional to 81,476.93, 112,227.84 and 57,562.08
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Solution
The fourth proportional to 81,476.93, 112,227.84 and 57,562.08 is: 79,287.09
Step by Step Solution
- Step 1: Write the proportion equation
81,476.93 : 112,227.84 = 57,562.08 : x - Step 2: Convert to fraction form
81,476.93/112,227.84 = 57,562.08/x - Step 3: Cross multiply
81,476.93x = 112,227.84 × 57,562.08 - Step 4: Simplify right side
81,476.93x = 6,460,067,904.31 - Step 5: Solve for x
x = 6,460,067,904.31/81,476.93 - Step 6: Final answer
x = 79,287.09
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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.