Finding the Fourth Proportional to 98,025.68, 135,311.64 and 62,238.80
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Solution
The fourth proportional to 98,025.68, 135,311.64 and 62,238.80 is: 85,912.53
Step by Step Solution
- Step 1: Write the proportion equation
98,025.68 : 135,311.64 = 62,238.80 : x - Step 2: Convert to fraction form
98,025.68/135,311.64 = 62,238.80/x - Step 3: Cross multiply
98,025.68x = 135,311.64 × 62,238.80 - Step 4: Simplify right side
98,025.68x = 8,421,634,099.63 - Step 5: Solve for x
x = 8,421,634,099.63/98,025.68 - Step 6: Final answer
x = 85,912.53
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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.