Finding the Fourth Proportional to 79,413.28, 119,122.48 and 39,948.80
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Solution
The fourth proportional to 79,413.28, 119,122.48 and 39,948.80 is: 59,924.49
Step by Step Solution
- Step 1: Write the proportion equation
79,413.28 : 119,122.48 = 39,948.80 : x - Step 2: Convert to fraction form
79,413.28/119,122.48 = 39,948.80/x - Step 3: Cross multiply
79,413.28x = 119,122.48 × 39,948.80 - Step 4: Simplify right side
79,413.28x = 4,758,800,129.02 - Step 5: Solve for x
x = 4,758,800,129.02/79,413.28 - Step 6: Final answer
x = 59,924.49
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1.5x scale
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.