Finding the Fourth Proportional to 88,707.42, 122,415.39 and 48,421.44
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Solution
The fourth proportional to 88,707.42, 122,415.39 and 48,421.44 is: 66,821.12
Step by Step Solution
- Step 1: Write the proportion equation
88,707.42 : 122,415.39 = 48,421.44 : x - Step 2: Convert to fraction form
88,707.42/122,415.39 = 48,421.44/x - Step 3: Cross multiply
88,707.42x = 122,415.39 × 48,421.44 - Step 4: Simplify right side
88,707.42x = 5,927,529,461.96 - Step 5: Solve for x
x = 5,927,529,461.96/88,707.42 - Step 6: Final answer
x = 66,821.12
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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.