Finding the Fourth Proportional to 74,784.93, 103,205.15 and 40,793.99
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Solution
The fourth proportional to 74,784.93, 103,205.15 and 40,793.99 is: 56,296.77
Step by Step Solution
- Step 1: Write the proportion equation
74,784.93 : 103,205.15 = 40,793.99 : x - Step 2: Convert to fraction form
74,784.93/103,205.15 = 40,793.99/x - Step 3: Cross multiply
74,784.93x = 103,205.15 × 40,793.99 - Step 4: Simplify right side
74,784.93x = 4,210,149,857.05 - Step 5: Solve for x
x = 4,210,149,857.05/74,784.93 - Step 6: Final answer
x = 56,296.77
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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.