Finding the Fourth Proportional to 93,142.28, 139,635.05 and 40,512.12
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Solution
The fourth proportional to 93,142.28, 139,635.05 and 40,512.12 is: 60,734.09
Step by Step Solution
- Step 1: Write the proportion equation
93,142.28 : 139,635.05 = 40,512.12 : x - Step 2: Convert to fraction form
93,142.28/139,635.05 = 40,512.12/x - Step 3: Cross multiply
93,142.28x = 139,635.05 × 40,512.12 - Step 4: Simplify right side
93,142.28x = 5,656,911,699.25 - Step 5: Solve for x
x = 5,656,911,699.25/93,142.28 - Step 6: Final answer
x = 60,734.09
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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.