Finding the Fourth Proportional to 74,669.05, 103,043.29 and 41,135.05
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Solution
The fourth proportional to 74,669.05, 103,043.29 and 41,135.05 is: 56,766.37
Step by Step Solution
- Step 1: Write the proportion equation
74,669.05 : 103,043.29 = 41,135.05 : x - Step 2: Convert to fraction form
74,669.05/103,043.29 = 41,135.05/x - Step 3: Cross multiply
74,669.05x = 103,043.29 × 41,135.05 - Step 4: Simplify right side
74,669.05x = 4,238,690,886.31 - Step 5: Solve for x
x = 4,238,690,886.31/74,669.05 - Step 6: Final answer
x = 56,766.37
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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.