Finding the Fourth Proportional to 74,372.36, 102,632.58 and 40,838.12
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Solution
The fourth proportional to 74,372.36, 102,632.58 and 40,838.12 is: 56,355.90
Step by Step Solution
- Step 1: Write the proportion equation
74,372.36 : 102,632.58 = 40,838.12 : x - Step 2: Convert to fraction form
74,372.36/102,632.58 = 40,838.12/x - Step 3: Cross multiply
74,372.36x = 102,632.58 × 40,838.12 - Step 4: Simplify right side
74,372.36x = 4,191,321,617.95 - Step 5: Solve for x
x = 4,191,321,617.95/74,372.36 - Step 6: Final answer
x = 56,355.90
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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.