Finding the Fourth Proportional to 98,532.50, 135,974.99 and 56,091.03
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Solution
The fourth proportional to 98,532.50, 135,974.99 and 56,091.03 is: 77,405.70
Step by Step Solution
- Step 1: Write the proportion equation
98,532.50 : 135,974.99 = 56,091.03 : x - Step 2: Convert to fraction form
98,532.50/135,974.99 = 56,091.03/x - Step 3: Cross multiply
98,532.50x = 135,974.99 × 56,091.03 - Step 4: Simplify right side
98,532.50x = 7,626,977,323.01 - Step 5: Solve for x
x = 7,626,977,323.01/98,532.50 - Step 6: Final answer
x = 77,405.70
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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.