Finding the Fourth Proportional to 74,734.68, 103,128.69 and 42,033.99
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Solution
The fourth proportional to 74,734.68, 103,128.69 and 42,033.99 is: 58,004.00
Step by Step Solution
- Step 1: Write the proportion equation
74,734.68 : 103,128.69 = 42,033.99 : x - Step 2: Convert to fraction form
74,734.68/103,128.69 = 42,033.99/x - Step 3: Cross multiply
74,734.68x = 103,128.69 × 42,033.99 - Step 4: Simplify right side
74,734.68x = 4,334,910,324.17 - Step 5: Solve for x
x = 4,334,910,324.17/74,734.68 - Step 6: Final answer
x = 58,004.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.