Finding the Fourth Proportional to 74,457.06, 102,751.29 and 40,465.68
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Solution
The fourth proportional to 74,457.06, 102,751.29 and 40,465.68 is: 55,842.94
Step by Step Solution
- Step 1: Write the proportion equation
74,457.06 : 102,751.29 = 40,465.68 : x - Step 2: Convert to fraction form
74,457.06/102,751.29 = 40,465.68/x - Step 3: Cross multiply
74,457.06x = 102,751.29 × 40,465.68 - Step 4: Simplify right side
74,457.06x = 4,157,900,820.73 - Step 5: Solve for x
x = 4,157,900,820.73/74,457.06 - Step 6: Final answer
x = 55,842.94
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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.