Finding the Fourth Proportional to 76,784.99, 115,149.94 and 29,413.40
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Solution
The fourth proportional to 76,784.99, 115,149.94 and 29,413.40 is: 44,109.54
Step by Step Solution
- Step 1: Write the proportion equation
76,784.99 : 115,149.94 = 29,413.40 : x - Step 2: Convert to fraction form
76,784.99/115,149.94 = 29,413.40/x - Step 3: Cross multiply
76,784.99x = 115,149.94 × 29,413.40 - Step 4: Simplify right side
76,784.99x = 3,386,950,595.91 - Step 5: Solve for x
x = 3,386,950,595.91/76,784.99 - Step 6: Final answer
x = 44,109.54
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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.