Finding the Fourth Proportional to 98,605.76, 136,075.94 and 53,893.76
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Solution
The fourth proportional to 98,605.76, 136,075.94 and 53,893.76 is: 74,373.38
Step by Step Solution
- Step 1: Write the proportion equation
98,605.76 : 136,075.94 = 53,893.76 : x - Step 2: Convert to fraction form
98,605.76/136,075.94 = 53,893.76/x - Step 3: Cross multiply
98,605.76x = 136,075.94 × 53,893.76 - Step 4: Simplify right side
98,605.76x = 7,333,644,052.13 - Step 5: Solve for x
x = 7,333,644,052.13/98,605.76 - Step 6: Final answer
x = 74,373.38
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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.