Finding the Fourth Proportional to 83,534.11, 125,408.09 and 71,763.19
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Solution
The fourth proportional to 83,534.11, 125,408.09 and 71,763.19 is: 107,736.64
Step by Step Solution
- Step 1: Write the proportion equation
83,534.11 : 125,408.09 = 71,763.19 : x - Step 2: Convert to fraction form
83,534.11/125,408.09 = 71,763.19/x - Step 3: Cross multiply
83,534.11x = 125,408.09 × 71,763.19 - Step 4: Simplify right side
83,534.11x = 8,999,684,590.21 - Step 5: Solve for x
x = 8,999,684,590.21/83,534.11 - Step 6: Final answer
x = 107,736.64
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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.