Finding the Fourth Proportional to 98,514.50, 135,950.01 and 53,802.50
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Solution
The fourth proportional to 98,514.50, 135,950.01 and 53,802.50 is: 74,247.45
Step by Step Solution
- Step 1: Write the proportion equation
98,514.50 : 135,950.01 = 53,802.50 : x - Step 2: Convert to fraction form
98,514.50/135,950.01 = 53,802.50/x - Step 3: Cross multiply
98,514.50x = 135,950.01 × 53,802.50 - Step 4: Simplify right side
98,514.50x = 7,314,450,413.03 - Step 5: Solve for x
x = 7,314,450,413.03/98,514.50 - Step 6: Final answer
x = 74,247.45
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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.