Finding the Fourth Proportional to 68,807.80, 103,211.70 and 29,368.90
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Solution
The fourth proportional to 68,807.80, 103,211.70 and 29,368.90 is: 44,053.35
Step by Step Solution
- Step 1: Write the proportion equation
68,807.80 : 103,211.70 = 29,368.90 : x - Step 2: Convert to fraction form
68,807.80/103,211.70 = 29,368.90/x - Step 3: Cross multiply
68,807.80x = 103,211.70 × 29,368.90 - Step 4: Simplify right side
68,807.80x = 3,031,214,096.13 - Step 5: Solve for x
x = 3,031,214,096.13/68,807.80 - Step 6: Final answer
x = 44,053.35
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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.