Finding the Fourth Proportional to 87,885.26, 121,281.06 and 47,598.14
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Solution
The fourth proportional to 87,885.26, 121,281.06 and 47,598.14 is: 65,685.11
Step by Step Solution
- Step 1: Write the proportion equation
87,885.26 : 121,281.06 = 47,598.14 : x - Step 2: Convert to fraction form
87,885.26/121,281.06 = 47,598.14/x - Step 3: Cross multiply
87,885.26x = 121,281.06 × 47,598.14 - Step 4: Simplify right side
87,885.26x = 5,772,752,873.23 - Step 5: Solve for x
x = 5,772,752,873.23/87,885.26 - Step 6: Final answer
x = 65,685.11
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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.