Finding the Fourth Proportional to 80,870.26, 121,124.84 and 62,011.40
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Solution
The fourth proportional to 80,870.26, 121,124.84 and 62,011.40 is: 92,878.65
Step by Step Solution
- Step 1: Write the proportion equation
80,870.26 : 121,124.84 = 62,011.40 : x - Step 2: Convert to fraction form
80,870.26/121,124.84 = 62,011.40/x - Step 3: Cross multiply
80,870.26x = 121,124.84 × 62,011.40 - Step 4: Simplify right side
80,870.26x = 7,511,120,903.18 - Step 5: Solve for x
x = 7,511,120,903.18/80,870.26 - Step 6: Final answer
x = 92,878.65
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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.