Finding the Fourth Proportional to 75,867.30, 113,813.26 and 28,486.12
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Solution
The fourth proportional to 75,867.30, 113,813.26 and 28,486.12 is: 42,733.80
Step by Step Solution
- Step 1: Write the proportion equation
75,867.30 : 113,813.26 = 28,486.12 : x - Step 2: Convert to fraction form
75,867.30/113,813.26 = 28,486.12/x - Step 3: Cross multiply
75,867.30x = 113,813.26 × 28,486.12 - Step 4: Simplify right side
75,867.30x = 3,242,098,181.95 - Step 5: Solve for x
x = 3,242,098,181.95/75,867.30 - Step 6: Final answer
x = 42,733.80
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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.