Finding the Fourth Proportional to 86,006.34, 129,058.65 and 33,408.99
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Solution
The fourth proportional to 86,006.34, 129,058.65 and 33,408.99 is: 50,132.57
Step by Step Solution
- Step 1: Write the proportion equation
86,006.34 : 129,058.65 = 33,408.99 : x - Step 2: Convert to fraction form
86,006.34/129,058.65 = 33,408.99/x - Step 3: Cross multiply
86,006.34x = 129,058.65 × 33,408.99 - Step 4: Simplify right side
86,006.34x = 4,311,719,147.26 - Step 5: Solve for x
x = 4,311,719,147.26/86,006.34 - Step 6: Final answer
x = 50,132.57
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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.