Finding the Fourth Proportional to 75,739.08, 104,521.14 and 42,205.08
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Solution
The fourth proportional to 75,739.08, 104,521.14 and 42,205.08 is: 58,243.68
Step by Step Solution
- Step 1: Write the proportion equation
75,739.08 : 104,521.14 = 42,205.08 : x - Step 2: Convert to fraction form
75,739.08/104,521.14 = 42,205.08/x - Step 3: Cross multiply
75,739.08x = 104,521.14 × 42,205.08 - Step 4: Simplify right side
75,739.08x = 4,411,323,075.39 - Step 5: Solve for x
x = 4,411,323,075.39/75,739.08 - Step 6: Final answer
x = 58,243.68
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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.