Finding the Fourth Proportional to 94,706.76, 142,035.51 and 28,128.99
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Solution
The fourth proportional to 94,706.76, 142,035.51 and 28,128.99 is: 42,186.17
Step by Step Solution
- Step 1: Write the proportion equation
94,706.76 : 142,035.51 = 28,128.99 : x - Step 2: Convert to fraction form
94,706.76/142,035.51 = 28,128.99/x - Step 3: Cross multiply
94,706.76x = 142,035.51 × 28,128.99 - Step 4: Simplify right side
94,706.76x = 3,995,315,440.43 - Step 5: Solve for x
x = 3,995,315,440.43/94,706.76 - Step 6: Final answer
x = 42,186.17
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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.