Finding the Fourth Proportional to 75,354.24, 103,990.12 and 41,365.92
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Solution
The fourth proportional to 75,354.24, 103,990.12 and 41,365.92 is: 57,085.67
Step by Step Solution
- Step 1: Write the proportion equation
75,354.24 : 103,990.12 = 41,365.92 : x - Step 2: Convert to fraction form
75,354.24/103,990.12 = 41,365.92/x - Step 3: Cross multiply
75,354.24x = 103,990.12 × 41,365.92 - Step 4: Simplify right side
75,354.24x = 4,301,646,984.71 - Step 5: Solve for x
x = 4,301,646,984.71/75,354.24 - Step 6: Final answer
x = 57,085.67
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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.