Finding the Fourth Proportional to 74,680.61, 112,020.91 and 22,085.99
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Solution
The fourth proportional to 74,680.61, 112,020.91 and 22,085.99 is: 33,128.99
Step by Step Solution
- Step 1: Write the proportion equation
74,680.61 : 112,020.91 = 22,085.99 : x - Step 2: Convert to fraction form
74,680.61/112,020.91 = 22,085.99/x - Step 3: Cross multiply
74,680.61x = 112,020.91 × 22,085.99 - Step 4: Simplify right side
74,680.61x = 2,474,092,922.89 - Step 5: Solve for x
x = 2,474,092,922.89/74,680.61 - Step 6: Final answer
x = 33,128.99
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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.