Finding the Fourth Proportional to 74,787.90, 112,173.64 and 37,340.99
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Solution
The fourth proportional to 74,787.90, 112,173.64 and 37,340.99 is: 56,007.39
Step by Step Solution
- Step 1: Write the proportion equation
74,787.90 : 112,173.64 = 37,340.99 : x - Step 2: Convert to fraction form
74,787.90/112,173.64 = 37,340.99/x - Step 3: Cross multiply
74,787.90x = 112,173.64 × 37,340.99 - Step 4: Simplify right side
74,787.90x = 4,188,674,769.50 - Step 5: Solve for x
x = 4,188,674,769.50/74,787.90 - Step 6: Final answer
x = 56,007.39
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1.5x scale
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.