Finding the Fourth Proportional to 74,275.44, 102,534.84 and 50,403.12
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Solution
The fourth proportional to 74,275.44, 102,534.84 and 50,403.12 is: 69,579.88
Step by Step Solution
- Step 1: Write the proportion equation
74,275.44 : 102,534.84 = 50,403.12 : x - Step 2: Convert to fraction form
74,275.44/102,534.84 = 50,403.12/x - Step 3: Cross multiply
74,275.44x = 102,534.84 × 50,403.12 - Step 4: Simplify right side
74,275.44x = 5,168,075,844.70 - Step 5: Solve for x
x = 5,168,075,844.70/74,275.44 - Step 6: Final answer
x = 69,579.88
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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.