Finding the Fourth Proportional to 75,107.03, 103,659.08 and 42,841.49
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Solution
The fourth proportional to 75,107.03, 103,659.08 and 42,841.49 is: 59,127.75
Step by Step Solution
- Step 1: Write the proportion equation
75,107.03 : 103,659.08 = 42,841.49 : x - Step 2: Convert to fraction form
75,107.03/103,659.08 = 42,841.49/x - Step 3: Cross multiply
75,107.03x = 103,659.08 × 42,841.49 - Step 4: Simplify right side
75,107.03x = 4,440,909,287.19 - Step 5: Solve for x
x = 4,440,909,287.19/75,107.03 - Step 6: Final answer
x = 59,127.75
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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.