Finding the Fourth Proportional to 86,058.28, 118,754.58 and 48,331.72
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Solution
The fourth proportional to 86,058.28, 118,754.58 and 48,331.72 is: 66,694.49
Step by Step Solution
- Step 1: Write the proportion equation
86,058.28 : 118,754.58 = 48,331.72 : x - Step 2: Convert to fraction form
86,058.28/118,754.58 = 48,331.72/x - Step 3: Cross multiply
86,058.28x = 118,754.58 × 48,331.72 - Step 4: Simplify right side
86,058.28x = 5,739,613,109.28 - Step 5: Solve for x
x = 5,739,613,109.28/86,058.28 - Step 6: Final answer
x = 66,694.49
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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.