Finding the Fourth Proportional to 74,435.75, 102,722.96 and 40,901.75
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Solution
The fourth proportional to 74,435.75, 102,722.96 and 40,901.75 is: 56,445.31
Step by Step Solution
- Step 1: Write the proportion equation
74,435.75 : 102,722.96 = 40,901.75 : x - Step 2: Convert to fraction form
74,435.75/102,722.96 = 40,901.75/x - Step 3: Cross multiply
74,435.75x = 102,722.96 × 40,901.75 - Step 4: Simplify right side
74,435.75x = 4,201,548,829.18 - Step 5: Solve for x
x = 4,201,548,829.18/74,435.75 - Step 6: Final answer
x = 56,445.31
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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.