Finding the Fourth Proportional to 75,273.36, 112,929.02 and 53,129.98
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Solution
The fourth proportional to 75,273.36, 112,929.02 and 53,129.98 is: 79,708.37
Step by Step Solution
- Step 1: Write the proportion equation
75,273.36 : 112,929.02 = 53,129.98 : x - Step 2: Convert to fraction form
75,273.36/112,929.02 = 53,129.98/x - Step 3: Cross multiply
75,273.36x = 112,929.02 × 53,129.98 - Step 4: Simplify right side
75,273.36x = 5,999,916,574.02 - Step 5: Solve for x
x = 5,999,916,574.02/75,273.36 - Step 6: Final answer
x = 79,708.37
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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.