Finding the Fourth Proportional to 68,985.12, 103,425.20 and 35,683.98
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Solution
The fourth proportional to 68,985.12, 103,425.20 and 35,683.98 is: 53,498.82
Step by Step Solution
- Step 1: Write the proportion equation
68,985.12 : 103,425.20 = 35,683.98 : x - Step 2: Convert to fraction form
68,985.12/103,425.20 = 35,683.98/x - Step 3: Cross multiply
68,985.12x = 103,425.20 × 35,683.98 - Step 4: Simplify right side
68,985.12x = 3,690,622,589.88 - Step 5: Solve for x
x = 3,690,622,589.88/68,985.12 - Step 6: Final answer
x = 53,498.82
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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.