Finding the Fourth Proportional to 74,730.17, 112,128.27 and 39,182.99
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Solution
The fourth proportional to 74,730.17, 112,128.27 and 39,182.99 is: 58,791.80
Step by Step Solution
- Step 1: Write the proportion equation
74,730.17 : 112,128.27 = 39,182.99 : x - Step 2: Convert to fraction form
74,730.17/112,128.27 = 39,182.99/x - Step 3: Cross multiply
74,730.17x = 112,128.27 × 39,182.99 - Step 4: Simplify right side
74,730.17x = 4,393,520,882.13 - Step 5: Solve for x
x = 4,393,520,882.13/74,730.17 - Step 6: Final answer
x = 58,791.80
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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.