Finding the Fourth Proportional to 92,616.64, 138,775.68 and 48,176.80
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Solution
The fourth proportional to 92,616.64, 138,775.68 and 48,176.80 is: 72,187.55
Step by Step Solution
- Step 1: Write the proportion equation
92,616.64 : 138,775.68 = 48,176.80 : x - Step 2: Convert to fraction form
92,616.64/138,775.68 = 48,176.80/x - Step 3: Cross multiply
92,616.64x = 138,775.68 × 48,176.80 - Step 4: Simplify right side
92,616.64x = 6,685,768,180.22 - Step 5: Solve for x
x = 6,685,768,180.22/92,616.64 - Step 6: Final answer
x = 72,187.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.