Finding the Fourth Proportional to 74,786.90, 112,172.14 and 37,339.99
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Solution
The fourth proportional to 74,786.90, 112,172.14 and 37,339.99 is: 56,005.89
Step by Step Solution
- Step 1: Write the proportion equation
74,786.90 : 112,172.14 = 37,339.99 : x - Step 2: Convert to fraction form
74,786.90/112,172.14 = 37,339.99/x - Step 3: Cross multiply
74,786.90x = 112,172.14 × 37,339.99 - Step 4: Simplify right side
74,786.90x = 4,188,506,352.12 - Step 5: Solve for x
x = 4,188,506,352.12/74,786.90 - Step 6: Final answer
x = 56,005.89
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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.