Finding the Fourth Proportional to 75,017.24, 103,561.44 and 57,982.99
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Solution
The fourth proportional to 75,017.24, 103,561.44 and 57,982.99 is: 80,045.62
Step by Step Solution
- Step 1: Write the proportion equation
75,017.24 : 103,561.44 = 57,982.99 : x - Step 2: Convert to fraction form
75,017.24/103,561.44 = 57,982.99/x - Step 3: Cross multiply
75,017.24x = 103,561.44 × 57,982.99 - Step 4: Simplify right side
75,017.24x = 6,004,801,917.91 - Step 5: Solve for x
x = 6,004,801,917.91/75,017.24 - Step 6: Final answer
x = 80,045.62
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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.