Finding the Fourth Proportional to 75,611.80, 113,417.70 and 52,283.80
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Solution
The fourth proportional to 75,611.80, 113,417.70 and 52,283.80 is: 78,425.70
Step by Step Solution
- Step 1: Write the proportion equation
75,611.80 : 113,417.70 = 52,283.80 : x - Step 2: Convert to fraction form
75,611.80/113,417.70 = 52,283.80/x - Step 3: Cross multiply
75,611.80x = 113,417.70 × 52,283.80 - Step 4: Simplify right side
75,611.80x = 5,929,908,343.26 - Step 5: Solve for x
x = 5,929,908,343.26/75,611.80 - Step 6: Final answer
x = 78,425.70
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1.5x scale
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.