Finding the Fourth Proportional to 68,068.24, 101,998.41 and 28,603.78
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Solution
The fourth proportional to 68,068.24, 101,998.41 and 28,603.78 is: 42,861.99
Step by Step Solution
- Step 1: Write the proportion equation
68,068.24 : 101,998.41 = 28,603.78 : x - Step 2: Convert to fraction form
68,068.24/101,998.41 = 28,603.78/x - Step 3: Cross multiply
68,068.24x = 101,998.41 × 28,603.78 - Step 4: Simplify right side
68,068.24x = 2,917,540,079.99 - Step 5: Solve for x
x = 2,917,540,079.99/68,068.24 - Step 6: Final answer
x = 42,861.99
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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.