Finding the Fourth Proportional to 87,710.92, 121,032.56 and 49,476.49
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Solution
The fourth proportional to 87,710.92, 121,032.56 and 49,476.49 is: 68,272.76
Step by Step Solution
- Step 1: Write the proportion equation
87,710.92 : 121,032.56 = 49,476.49 : x - Step 2: Convert to fraction form
87,710.92/121,032.56 = 49,476.49/x - Step 3: Cross multiply
87,710.92x = 121,032.56 × 49,476.49 - Step 4: Simplify right side
87,710.92x = 5,988,266,065.62 - Step 5: Solve for x
x = 5,988,266,065.62/87,710.92 - Step 6: Final answer
x = 68,272.76
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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.