Finding the Fourth Proportional to 70,899.26, 106,349.28 and 18,305.14
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Solution
The fourth proportional to 70,899.26, 106,349.28 and 18,305.14 is: 27,457.81
Step by Step Solution
- Step 1: Write the proportion equation
70,899.26 : 106,349.28 = 18,305.14 : x - Step 2: Convert to fraction form
70,899.26/106,349.28 = 18,305.14/x - Step 3: Cross multiply
70,899.26x = 106,349.28 × 18,305.14 - Step 4: Simplify right side
70,899.26x = 1,946,738,459.30 - Step 5: Solve for x
x = 1,946,738,459.30/70,899.26 - Step 6: Final answer
x = 27,457.81
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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.