Finding the Fourth Proportional to 72,303.56, 108,452.14 and 19,713.05
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Solution
The fourth proportional to 72,303.56, 108,452.14 and 19,713.05 is: 29,568.70
Step by Step Solution
- Step 1: Write the proportion equation
72,303.56 : 108,452.14 = 19,713.05 : x - Step 2: Convert to fraction form
72,303.56/108,452.14 = 19,713.05/x - Step 3: Cross multiply
72,303.56x = 108,452.14 × 19,713.05 - Step 4: Simplify right side
72,303.56x = 2,137,921,866.88 - Step 5: Solve for x
x = 2,137,921,866.88/72,303.56 - Step 6: Final answer
x = 29,568.70
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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.