Finding the Fourth Proportional to 76,655.80, 105,803.58 and 51,163.48
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Solution
The fourth proportional to 76,655.80, 105,803.58 and 51,163.48 is: 70,618.00
Step by Step Solution
- Step 1: Write the proportion equation
76,655.80 : 105,803.58 = 51,163.48 : x - Step 2: Convert to fraction form
76,655.80/105,803.58 = 51,163.48/x - Step 3: Cross multiply
76,655.80x = 105,803.58 × 51,163.48 - Step 4: Simplify right side
76,655.80x = 5,413,279,349.26 - Step 5: Solve for x
x = 5,413,279,349.26/76,655.80 - Step 6: Final answer
x = 70,618.00
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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.