Finding the Fourth Proportional to 88,247.97, 121,783.14 and 47,961.74
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Solution
The fourth proportional to 88,247.97, 121,783.14 and 47,961.74 is: 66,187.71
Step by Step Solution
- Step 1: Write the proportion equation
88,247.97 : 121,783.14 = 47,961.74 : x - Step 2: Convert to fraction form
88,247.97/121,783.14 = 47,961.74/x - Step 3: Cross multiply
88,247.97x = 121,783.14 × 47,961.74 - Step 4: Simplify right side
88,247.97x = 5,840,931,297.06 - Step 5: Solve for x
x = 5,840,931,297.06/88,247.97 - Step 6: Final answer
x = 66,187.71
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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.