Finding the Fourth Proportional to 81,027.99, 121,334.09 and 56,033.55
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Solution
The fourth proportional to 81,027.99, 121,334.09 and 56,033.55 is: 83,906.56
Step by Step Solution
- Step 1: Write the proportion equation
81,027.99 : 121,334.09 = 56,033.55 : x - Step 2: Convert to fraction form
81,027.99/121,334.09 = 56,033.55/x - Step 3: Cross multiply
81,027.99x = 121,334.09 × 56,033.55 - Step 4: Simplify right side
81,027.99x = 6,798,779,518.55 - Step 5: Solve for x
x = 6,798,779,518.55/81,027.99 - Step 6: Final answer
x = 83,906.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.