Finding the Fourth Proportional to 74,908.94, 103,232.21 and 53,651.30
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Solution
The fourth proportional to 74,908.94, 103,232.21 and 53,651.30 is: 73,936.99
Step by Step Solution
- Step 1: Write the proportion equation
74,908.94 : 103,232.21 = 53,651.30 : x - Step 2: Convert to fraction form
74,908.94/103,232.21 = 53,651.30/x - Step 3: Cross multiply
74,908.94x = 103,232.21 × 53,651.30 - Step 4: Simplify right side
74,908.94x = 5,538,541,483.96 - Step 5: Solve for x
x = 5,538,541,483.96/74,908.94 - Step 6: Final answer
x = 73,936.99
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1.5x scale
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.