Finding the Fourth Proportional to 83,458.60, 125,206.62 and 30,869.80
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Solution
The fourth proportional to 83,458.60, 125,206.62 and 30,869.80 is: 46,311.62
Step by Step Solution
- Step 1: Write the proportion equation
83,458.60 : 125,206.62 = 30,869.80 : x - Step 2: Convert to fraction form
83,458.60/125,206.62 = 30,869.80/x - Step 3: Cross multiply
83,458.60x = 125,206.62 × 30,869.80 - Step 4: Simplify right side
83,458.60x = 3,865,103,318.08 - Step 5: Solve for x
x = 3,865,103,318.08/83,458.60 - Step 6: Final answer
x = 46,311.62
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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.