Finding the Fourth Proportional to 88,138.05, 121,630.59 and 47,851.80
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Solution
The fourth proportional to 88,138.05, 121,630.59 and 47,851.80 is: 66,035.53
Step by Step Solution
- Step 1: Write the proportion equation
88,138.05 : 121,630.59 = 47,851.80 : x - Step 2: Convert to fraction form
88,138.05/121,630.59 = 47,851.80/x - Step 3: Cross multiply
88,138.05x = 121,630.59 × 47,851.80 - Step 4: Simplify right side
88,138.05x = 5,820,242,666.56 - Step 5: Solve for x
x = 5,820,242,666.56/88,138.05 - Step 6: Final answer
x = 66,035.53
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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.