Finding the Fourth Proportional to 75,415.62, 104,102.64 and 56,607.42
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Solution
The fourth proportional to 75,415.62, 104,102.64 and 56,607.42 is: 78,140.07
Step by Step Solution
- Step 1: Write the proportion equation
75,415.62 : 104,102.64 = 56,607.42 : x - Step 2: Convert to fraction form
75,415.62/104,102.64 = 56,607.42/x - Step 3: Cross multiply
75,415.62x = 104,102.64 × 56,607.42 - Step 4: Simplify right side
75,415.62x = 5,892,981,865.59 - Step 5: Solve for x
x = 5,892,981,865.59/75,415.62 - Step 6: Final answer
x = 78,140.07
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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.