Finding the Fourth Proportional to 81,277.74, 112,163.95 and 47,305.88
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Solution
The fourth proportional to 81,277.74, 112,163.95 and 47,305.88 is: 65,282.51
Step by Step Solution
- Step 1: Write the proportion equation
81,277.74 : 112,163.95 = 47,305.88 : x - Step 2: Convert to fraction form
81,277.74/112,163.95 = 47,305.88/x - Step 3: Cross multiply
81,277.74x = 112,163.95 × 47,305.88 - Step 4: Simplify right side
81,277.74x = 5,306,014,240.76 - Step 5: Solve for x
x = 5,306,014,240.76/81,277.74 - Step 6: Final answer
x = 65,282.51
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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.