Finding the Fourth Proportional to 88,431.68, 122,038.08 and 48,147.14
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Solution
The fourth proportional to 88,431.68, 122,038.08 and 48,147.14 is: 66,444.34
Step by Step Solution
- Step 1: Write the proportion equation
88,431.68 : 122,038.08 = 48,147.14 : x - Step 2: Convert to fraction form
88,431.68/122,038.08 = 48,147.14/x - Step 3: Cross multiply
88,431.68x = 122,038.08 × 48,147.14 - Step 4: Simplify right side
88,431.68x = 5,875,784,523.09 - Step 5: Solve for x
x = 5,875,784,523.09/88,431.68 - Step 6: Final answer
x = 66,444.34
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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.