Finding the Fourth Proportional to 68,829.84, 103,233.96 and 18,913.68
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Solution
The fourth proportional to 68,829.84, 103,233.96 and 18,913.68 is: 28,367.55
Step by Step Solution
- Step 1: Write the proportion equation
68,829.84 : 103,233.96 = 18,913.68 : x - Step 2: Convert to fraction form
68,829.84/103,233.96 = 18,913.68/x - Step 3: Cross multiply
68,829.84x = 103,233.96 × 18,913.68 - Step 4: Simplify right side
68,829.84x = 1,952,534,084.57 - Step 5: Solve for x
x = 1,952,534,084.57/68,829.84 - Step 6: Final answer
x = 28,367.55
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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.