Finding the Fourth Proportional to 83,693.93, 115,542.65 and 64,531.69
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Solution
The fourth proportional to 83,693.93, 115,542.65 and 64,531.69 is: 89,088.45
Step by Step Solution
- Step 1: Write the proportion equation
83,693.93 : 115,542.65 = 64,531.69 : x - Step 2: Convert to fraction form
83,693.93/115,542.65 = 64,531.69/x - Step 3: Cross multiply
83,693.93x = 115,542.65 × 64,531.69 - Step 4: Simplify right side
83,693.93x = 7,456,162,344.05 - Step 5: Solve for x
x = 7,456,162,344.05/83,693.93 - Step 6: Final answer
x = 89,088.45
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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.