Finding the Fourth Proportional to 75,478.63, 104,133.95 and 45,273.73
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Solution
The fourth proportional to 75,478.63, 104,133.95 and 45,273.73 is: 62,461.82
Step by Step Solution
- Step 1: Write the proportion equation
75,478.63 : 104,133.95 = 45,273.73 : x - Step 2: Convert to fraction form
75,478.63/104,133.95 = 45,273.73/x - Step 3: Cross multiply
75,478.63x = 104,133.95 × 45,273.73 - Step 4: Simplify right side
75,478.63x = 4,714,532,336.13 - Step 5: Solve for x
x = 4,714,532,336.13/75,478.63 - Step 6: Final answer
x = 62,461.82
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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.