Finding the Fourth Proportional to 74,958.24, 112,405.33 and 43,390.08
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Solution
The fourth proportional to 74,958.24, 112,405.33 and 43,390.08 is: 65,066.58
Step by Step Solution
- Step 1: Write the proportion equation
74,958.24 : 112,405.33 = 43,390.08 : x - Step 2: Convert to fraction form
74,958.24/112,405.33 = 43,390.08/x - Step 3: Cross multiply
74,958.24x = 112,405.33 × 43,390.08 - Step 4: Simplify right side
74,958.24x = 4,877,276,261.13 - Step 5: Solve for x
x = 4,877,276,261.13/74,958.24 - Step 6: Final answer
x = 65,066.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.