Finding the Fourth Proportional to 86,683.86, 130,020.12 and 27,523.08
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Solution
The fourth proportional to 86,683.86, 130,020.12 and 27,523.08 is: 41,282.82
Step by Step Solution
- Step 1: Write the proportion equation
86,683.86 : 130,020.12 = 27,523.08 : x - Step 2: Convert to fraction form
86,683.86/130,020.12 = 27,523.08/x - Step 3: Cross multiply
86,683.86x = 130,020.12 × 27,523.08 - Step 4: Simplify right side
86,683.86x = 3,578,554,164.37 - Step 5: Solve for x
x = 3,578,554,164.37/86,683.86 - Step 6: Final answer
x = 41,282.82
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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.