Finding the Fourth Proportional to 85,412.56, 128,122.08 and 23,083.08
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Solution
The fourth proportional to 85,412.56, 128,122.08 and 23,083.08 is: 34,625.50
Step by Step Solution
- Step 1: Write the proportion equation
85,412.56 : 128,122.08 = 23,083.08 : x - Step 2: Convert to fraction form
85,412.56/128,122.08 = 23,083.08/x - Step 3: Cross multiply
85,412.56x = 128,122.08 × 23,083.08 - Step 4: Simplify right side
85,412.56x = 2,957,452,222.41 - Step 5: Solve for x
x = 2,957,452,222.41/85,412.56 - Step 6: Final answer
x = 34,625.50
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1.5x scale
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.