Finding the Fourth Proportional to 74,952.22, 103,424.10 and 48,131.05
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Solution
The fourth proportional to 74,952.22, 103,424.10 and 48,131.05 is: 66,414.45
Step by Step Solution
- Step 1: Write the proportion equation
74,952.22 : 103,424.10 = 48,131.05 : x - Step 2: Convert to fraction form
74,952.22/103,424.10 = 48,131.05/x - Step 3: Cross multiply
74,952.22x = 103,424.10 × 48,131.05 - Step 4: Simplify right side
74,952.22x = 4,977,910,528.31 - Step 5: Solve for x
x = 4,977,910,528.31/74,952.22 - Step 6: Final answer
x = 66,414.45
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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.