Finding the Fourth Proportional to 88,115.79, 121,599.90 and 47,829.53
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Solution
The fourth proportional to 88,115.79, 121,599.90 and 47,829.53 is: 66,004.81
Step by Step Solution
- Step 1: Write the proportion equation
88,115.79 : 121,599.90 = 47,829.53 : x - Step 2: Convert to fraction form
88,115.79/121,599.90 = 47,829.53/x - Step 3: Cross multiply
88,115.79x = 121,599.90 × 47,829.53 - Step 4: Simplify right side
88,115.79x = 5,816,066,065.05 - Step 5: Solve for x
x = 5,816,066,065.05/88,115.79 - Step 6: Final answer
x = 66,004.81
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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.