Finding the Fourth Proportional to 84,010.43, 115,896.74 and 56,777.82
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Solution
The fourth proportional to 84,010.43, 115,896.74 and 56,777.82 is: 78,327.95
Step by Step Solution
- Step 1: Write the proportion equation
84,010.43 : 115,896.74 = 56,777.82 : x - Step 2: Convert to fraction form
84,010.43/115,896.74 = 56,777.82/x - Step 3: Cross multiply
84,010.43x = 115,896.74 × 56,777.82 - Step 4: Simplify right side
84,010.43x = 6,580,363,958.42 - Step 5: Solve for x
x = 6,580,363,958.42/84,010.43 - Step 6: Final answer
x = 78,327.95
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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.