Finding the Fourth Proportional to 75,582.30, 104,447.43 and 56,686.62
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Solution
The fourth proportional to 75,582.30, 104,447.43 and 56,686.62 is: 78,335.43
Step by Step Solution
- Step 1: Write the proportion equation
75,582.30 : 104,447.43 = 56,686.62 : x - Step 2: Convert to fraction form
75,582.30/104,447.43 = 56,686.62/x - Step 3: Cross multiply
75,582.30x = 104,447.43 × 56,686.62 - Step 4: Simplify right side
75,582.30x = 5,920,771,774.39 - Step 5: Solve for x
x = 5,920,771,774.39/75,582.30 - Step 6: Final answer
x = 78,335.43
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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.