Finding the Fourth Proportional to 81,202.68, 112,056.36 and 47,209.73
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Solution
The fourth proportional to 81,202.68, 112,056.36 and 47,209.73 is: 65,147.48
Step by Step Solution
- Step 1: Write the proportion equation
81,202.68 : 112,056.36 = 47,209.73 : x - Step 2: Convert to fraction form
81,202.68/112,056.36 = 47,209.73/x - Step 3: Cross multiply
81,202.68x = 112,056.36 × 47,209.73 - Step 4: Simplify right side
81,202.68x = 5,290,149,940.10 - Step 5: Solve for x
x = 5,290,149,940.10/81,202.68 - Step 6: Final answer
x = 65,147.48
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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.