Finding the Fourth Proportional to 78,101.11, 107,779.36 and 44,107.99
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Solution
The fourth proportional to 78,101.11, 107,779.36 and 44,107.99 is: 60,868.93
Step by Step Solution
- Step 1: Write the proportion equation
78,101.11 : 107,779.36 = 44,107.99 : x - Step 2: Convert to fraction form
78,101.11/107,779.36 = 44,107.99/x - Step 3: Cross multiply
78,101.11x = 107,779.36 × 44,107.99 - Step 4: Simplify right side
78,101.11x = 4,753,931,242.33 - Step 5: Solve for x
x = 4,753,931,242.33/78,101.11 - Step 6: Final answer
x = 60,868.93
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.