Finding the Fourth Proportional to 68,643.18, 103,000.08 and 51,997.68
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Solution
The fourth proportional to 68,643.18, 103,000.08 and 51,997.68 is: 78,023.27
Step by Step Solution
- Step 1: Write the proportion equation
68,643.18 : 103,000.08 = 51,997.68 : x - Step 2: Convert to fraction form
68,643.18/103,000.08 = 51,997.68/x - Step 3: Cross multiply
68,643.18x = 103,000.08 × 51,997.68 - Step 4: Simplify right side
68,643.18x = 5,355,765,199.81 - Step 5: Solve for x
x = 5,355,765,199.81/68,643.18 - Step 6: Final answer
x = 78,023.27
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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.