Finding the Fourth Proportional to 75,053.64, 112,413.84 and 53,930.28
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Solution
The fourth proportional to 75,053.64, 112,413.84 and 53,930.28 is: 80,775.69
Step by Step Solution
- Step 1: Write the proportion equation
75,053.64 : 112,413.84 = 53,930.28 : x - Step 2: Convert to fraction form
75,053.64/112,413.84 = 53,930.28/x - Step 3: Cross multiply
75,053.64x = 112,413.84 × 53,930.28 - Step 4: Simplify right side
75,053.64x = 6,062,509,867.08 - Step 5: Solve for x
x = 6,062,509,867.08/75,053.64 - Step 6: Final answer
x = 80,775.69
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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.