Finding the Fourth Proportional to 74,371.50, 102,632.67 and 40,837.50
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Solution
The fourth proportional to 74,371.50, 102,632.67 and 40,837.50 is: 56,355.75
Step by Step Solution
- Step 1: Write the proportion equation
74,371.50 : 102,632.67 = 40,837.50 : x - Step 2: Convert to fraction form
74,371.50/102,632.67 = 40,837.50/x - Step 3: Cross multiply
74,371.50x = 102,632.67 × 40,837.50 - Step 4: Simplify right side
74,371.50x = 4,191,261,661.13 - Step 5: Solve for x
x = 4,191,261,661.13/74,371.50 - Step 6: Final answer
x = 56,355.75
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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.