Finding the Fourth Proportional to 88,141.06, 121,541.67 and 62,620.81
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Solution
The fourth proportional to 88,141.06, 121,541.67 and 62,620.81 is: 86,350.65
Step by Step Solution
- Step 1: Write the proportion equation
88,141.06 : 121,541.67 = 62,620.81 : x - Step 2: Convert to fraction form
88,141.06/121,541.67 = 62,620.81/x - Step 3: Cross multiply
88,141.06x = 121,541.67 × 62,620.81 - Step 4: Simplify right side
88,141.06x = 7,611,037,824.15 - Step 5: Solve for x
x = 7,611,037,824.15/88,141.06 - Step 6: Final answer
x = 86,350.65
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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.