Finding the Fourth Proportional to 74,927.25, 103,399.56 and 40,935.99
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Solution
The fourth proportional to 74,927.25, 103,399.56 and 40,935.99 is: 56,491.64
Step by Step Solution
- Step 1: Write the proportion equation
74,927.25 : 103,399.56 = 40,935.99 : x - Step 2: Convert to fraction form
74,927.25/103,399.56 = 40,935.99/x - Step 3: Cross multiply
74,927.25x = 103,399.56 × 40,935.99 - Step 4: Simplify right side
74,927.25x = 4,232,763,354.16 - Step 5: Solve for x
x = 4,232,763,354.16/74,927.25 - Step 6: Final answer
x = 56,491.64
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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.