Finding the Fourth Proportional to 83,699.53, 115,476.84 and 47,863.91
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Solution
The fourth proportional to 83,699.53, 115,476.84 and 47,863.91 is: 66,035.90
Step by Step Solution
- Step 1: Write the proportion equation
83,699.53 : 115,476.84 = 47,863.91 : x - Step 2: Convert to fraction form
83,699.53/115,476.84 = 47,863.91/x - Step 3: Cross multiply
83,699.53x = 115,476.84 × 47,863.91 - Step 4: Simplify right side
83,699.53x = 5,527,173,365.54 - Step 5: Solve for x
x = 5,527,173,365.54/83,699.53 - Step 6: Final answer
x = 66,035.90
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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.