Finding the Fourth Proportional to 75,168.18, 103,682.14 and 48,344.62
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Solution
The fourth proportional to 75,168.18, 103,682.14 and 48,344.62 is: 66,683.45
Step by Step Solution
- Step 1: Write the proportion equation
75,168.18 : 103,682.14 = 48,344.62 : x - Step 2: Convert to fraction form
75,168.18/103,682.14 = 48,344.62/x - Step 3: Cross multiply
75,168.18x = 103,682.14 × 48,344.62 - Step 4: Simplify right side
75,168.18x = 5,012,473,659.09 - Step 5: Solve for x
x = 5,012,473,659.09/75,168.18 - Step 6: Final answer
x = 66,683.45
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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.