Finding the Fourth Proportional to 75,682.08, 103,684.96 and 72,844.44
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Solution
The fourth proportional to 75,682.08, 103,684.96 and 72,844.44 is: 99,797.37
Step by Step Solution
- Step 1: Write the proportion equation
75,682.08 : 103,684.96 = 72,844.44 : x - Step 2: Convert to fraction form
75,682.08/103,684.96 = 72,844.44/x - Step 3: Cross multiply
75,682.08x = 103,684.96 × 72,844.44 - Step 4: Simplify right side
75,682.08x = 7,552,872,847.62 - Step 5: Solve for x
x = 7,552,872,847.62/75,682.08 - Step 6: Final answer
x = 99,797.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.