Finding the Fourth Proportional to 88,075.29, 121,644.86 and 57,995.09
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Solution
The fourth proportional to 88,075.29, 121,644.86 and 57,995.09 is: 80,099.69
Step by Step Solution
- Step 1: Write the proportion equation
88,075.29 : 121,644.86 = 57,995.09 : x - Step 2: Convert to fraction form
88,075.29/121,644.86 = 57,995.09/x - Step 3: Cross multiply
88,075.29x = 121,644.86 × 57,995.09 - Step 4: Simplify right side
88,075.29x = 7,054,803,705.54 - Step 5: Solve for x
x = 7,054,803,705.54/88,075.29 - Step 6: Final answer
x = 80,099.69
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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.