Finding the Fourth Proportional to 84,089.64, 126,058.68 and 30,743.75
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Solution
The fourth proportional to 84,089.64, 126,058.68 and 30,743.75 is: 46,087.92
Step by Step Solution
- Step 1: Write the proportion equation
84,089.64 : 126,058.68 = 30,743.75 : x - Step 2: Convert to fraction form
84,089.64/126,058.68 = 30,743.75/x - Step 3: Cross multiply
84,089.64x = 126,058.68 × 30,743.75 - Step 4: Simplify right side
84,089.64x = 3,875,516,858.40 - Step 5: Solve for x
x = 3,875,516,858.40/84,089.64 - Step 6: Final answer
x = 46,087.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.