Finding the Fourth Proportional to 85,153.68, 117,491.36 and 56,079.05
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Solution
The fourth proportional to 85,153.68, 117,491.36 and 56,079.05 is: 77,375.43
Step by Step Solution
- Step 1: Write the proportion equation
85,153.68 : 117,491.36 = 56,079.05 : x - Step 2: Convert to fraction form
85,153.68/117,491.36 = 56,079.05/x - Step 3: Cross multiply
85,153.68x = 117,491.36 × 56,079.05 - Step 4: Simplify right side
85,153.68x = 6,588,802,984.16 - Step 5: Solve for x
x = 6,588,802,984.16/85,153.68 - Step 6: Final answer
x = 77,375.43
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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.