Finding the Fourth Proportional to 75,791.12, 104,599.14 and 56,637.64
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Solution
The fourth proportional to 75,791.12, 104,599.14 and 56,637.64 is: 78,165.46
Step by Step Solution
- Step 1: Write the proportion equation
75,791.12 : 104,599.14 = 56,637.64 : x - Step 2: Convert to fraction form
75,791.12/104,599.14 = 56,637.64/x - Step 3: Cross multiply
75,791.12x = 104,599.14 × 56,637.64 - Step 4: Simplify right side
75,791.12x = 5,924,248,174.13 - Step 5: Solve for x
x = 5,924,248,174.13/75,791.12 - Step 6: Final answer
x = 78,165.46
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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.