Finding the Fourth Proportional to 77,399.01, 106,829.69 and 47,201.00
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Solution
The fourth proportional to 77,399.01, 106,829.69 and 47,201.00 is: 65,148.99
Step by Step Solution
- Step 1: Write the proportion equation
77,399.01 : 106,829.69 = 47,201.00 : x - Step 2: Convert to fraction form
77,399.01/106,829.69 = 47,201.00/x - Step 3: Cross multiply
77,399.01x = 106,829.69 × 47,201.00 - Step 4: Simplify right side
77,399.01x = 5,042,467,427.54 - Step 5: Solve for x
x = 5,042,467,427.54/77,399.01 - Step 6: Final answer
x = 65,148.99
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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.