Finding the Fourth Proportional to 75,232.09, 103,867.52 and 48,421.19
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Solution
The fourth proportional to 75,232.09, 103,867.52 and 48,421.19 is: 66,851.64
Step by Step Solution
- Step 1: Write the proportion equation
75,232.09 : 103,867.52 = 48,421.19 : x - Step 2: Convert to fraction form
75,232.09/103,867.52 = 48,421.19/x - Step 3: Cross multiply
75,232.09x = 103,867.52 × 48,421.19 - Step 4: Simplify right side
75,232.09x = 5,029,388,938.31 - Step 5: Solve for x
x = 5,029,388,938.31/75,232.09 - Step 6: Final answer
x = 66,851.64
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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.