Finding the Fourth Proportional to 88,028.72, 121,479.08 and 47,743.44
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Solution
The fourth proportional to 88,028.72, 121,479.08 and 47,743.44 is: 65,885.65
Step by Step Solution
- Step 1: Write the proportion equation
88,028.72 : 121,479.08 = 47,743.44 : x - Step 2: Convert to fraction form
88,028.72/121,479.08 = 47,743.44/x - Step 3: Cross multiply
88,028.72x = 121,479.08 × 47,743.44 - Step 4: Simplify right side
88,028.72x = 5,799,829,167.24 - Step 5: Solve for x
x = 5,799,829,167.24/88,028.72 - Step 6: Final answer
x = 65,885.65
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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.