Finding the Fourth Proportional to 74,199.71, 102,395.96 and 40,208.19
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Solution
The fourth proportional to 74,199.71, 102,395.96 and 40,208.19 is: 55,487.50
Step by Step Solution
- Step 1: Write the proportion equation
74,199.71 : 102,395.96 = 40,208.19 : x - Step 2: Convert to fraction form
74,199.71/102,395.96 = 40,208.19/x - Step 3: Cross multiply
74,199.71x = 102,395.96 × 40,208.19 - Step 4: Simplify right side
74,199.71x = 4,117,156,214.91 - Step 5: Solve for x
x = 4,117,156,214.91/74,199.71 - Step 6: Final answer
x = 55,487.50
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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.