Finding the Fourth Proportional to 73,968.26, 102,070.68 and 42,130.94
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Solution
The fourth proportional to 73,968.26, 102,070.68 and 42,130.94 is: 58,137.55
Step by Step Solution
- Step 1: Write the proportion equation
73,968.26 : 102,070.68 = 42,130.94 : x - Step 2: Convert to fraction form
73,968.26/102,070.68 = 42,130.94/x - Step 3: Cross multiply
73,968.26x = 102,070.68 × 42,130.94 - Step 4: Simplify right side
73,968.26x = 4,300,333,694.84 - Step 5: Solve for x
x = 4,300,333,694.84/73,968.26 - Step 6: Final answer
x = 58,137.55
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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.