Finding the Fourth Proportional to 75,986.12, 113,909.48 and 29,203.76
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Solution
The fourth proportional to 75,986.12, 113,909.48 and 29,203.76 is: 43,778.85
Step by Step Solution
- Step 1: Write the proportion equation
75,986.12 : 113,909.48 = 29,203.76 : x - Step 2: Convert to fraction form
75,986.12/113,909.48 = 29,203.76/x - Step 3: Cross multiply
75,986.12x = 113,909.48 × 29,203.76 - Step 4: Simplify right side
75,986.12x = 3,326,585,115.64 - Step 5: Solve for x
x = 3,326,585,115.64/75,986.12 - Step 6: Final answer
x = 43,778.85
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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.