Finding the Fourth Proportional to 76,992.13, 106,246.14 and 48,327.19
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Solution
The fourth proportional to 76,992.13, 106,246.14 and 48,327.19 is: 66,689.64
Step by Step Solution
- Step 1: Write the proportion equation
76,992.13 : 106,246.14 = 48,327.19 : x - Step 2: Convert to fraction form
76,992.13/106,246.14 = 48,327.19/x - Step 3: Cross multiply
76,992.13x = 106,246.14 × 48,327.19 - Step 4: Simplify right side
76,992.13x = 5,134,577,128.93 - Step 5: Solve for x
x = 5,134,577,128.93/76,992.13 - Step 6: Final answer
x = 66,689.64
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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.