Finding the Fourth Proportional to 75,042.98, 112,564.68 and 30,669.74
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Solution
The fourth proportional to 75,042.98, 112,564.68 and 30,669.74 is: 46,004.70
Step by Step Solution
- Step 1: Write the proportion equation
75,042.98 : 112,564.68 = 30,669.74 : x - Step 2: Convert to fraction form
75,042.98/112,564.68 = 30,669.74/x - Step 3: Cross multiply
75,042.98x = 112,564.68 × 30,669.74 - Step 4: Simplify right side
75,042.98x = 3,452,329,468.78 - Step 5: Solve for x
x = 3,452,329,468.78/75,042.98 - Step 6: Final answer
x = 46,004.70
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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.