Finding the Fourth Proportional to 93,413.13, 128,912.97 and 53,132.70
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Solution
The fourth proportional to 93,413.13, 128,912.97 and 53,132.70 is: 73,324.75
Step by Step Solution
- Step 1: Write the proportion equation
93,413.13 : 128,912.97 = 53,132.70 : x - Step 2: Convert to fraction form
93,413.13/128,912.97 = 53,132.70/x - Step 3: Cross multiply
93,413.13x = 128,912.97 × 53,132.70 - Step 4: Simplify right side
93,413.13x = 6,849,494,161.12 - Step 5: Solve for x
x = 6,849,494,161.12/93,413.13 - Step 6: Final answer
x = 73,324.75
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1.5x scale
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.